21523320

素因数分解:

$2^3\times 3^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1$

素因数の和:116

約数の個数: 320

約数和(自身を含む): 90256320

約数和(自身を除く): 68733000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 18, 20, 21, 24, 26, 27, 28, 30, 35, 36, 39, 40, 42, 45, 52, 54, 56, 60, 63, 65, 70, 72, 73, 78, 81, 84, 90, 91, 104, 105, 108, 117, 120, 126, 130, 135, 140, 146, 156, 162, 168, 180, 182, 189, 195, 210, 216, 219, 234, 252, 260, 270, 273, 280, 292, 312, 315, 324, 351, 360, 364, 365, 378, 390, 405, 420, 438, 455, 468, 504, 511, 520, 540, 546, 567, 584, 585, 630, 648, 657, 702, 728, 730, 756, 780, 810, 819, 840, 876, 910, 936, 945, 949, 1022, 1053, 1080, 1092, 1095, 1134, 1170, 1260, 1314, 1365, 1404, 1460, 1512, 1533, 1560, 1620, 1638, 1752, 1755, 1820, 1890, 1898, 1971, 2044, 2106, 2184, 2190, 2268, 2340, 2457, 2520, 2555, 2628, 2730, 2808, 2835, 2847, 2920, 3066, 3240, 3276, 3285, 3510, 3640, 3780, 3796, 3942, 4088, 4095, 4212, 4380, 4536, 4599, 4680, 4745, 4914, 5110, 5256, 5265, 5460, 5670, 5694, 5913, 6132, 6552, 6570, 6643, 7020, 7371, 7560, 7592, 7665, 7884, 8190, 8424, 8541, 8760, 9198, 9490, 9828, 9855, 10220, 10530, 10920, 11340, 11388, 11826, 12264, 12285, 13140, 13286, 13797, 14040, 14235, 14742, 15330, 15768, 16380, 17082, 18396, 18980, 19656, 19710, 19929, 20440, 21060, 22680, 22776, 22995, 23652, 24570, 25623, 26280, 26572, 27594, 28470, 29484, 29565, 30660, 32760, 33215, 34164, 36792, 36855, 37960, 39420, 39858, 41391, 42120, 42705, 45990, 47304, 49140, 51246, 53144, 55188, 56940, 58968, 59130, 59787, 61320, 66430, 68328, 68985, 73710, 76869, 78840, 79716, 82782, 85410, 91980, 98280, 99645, 102492, 110376, 113880, 118260, 119574, 128115, 132860, 137970, 147420, 153738, 159432, 165564, 170820, 179361, 183960, 199290, 204984, 206955, 236520, 239148, 256230, 265720, 275940, 294840, 298935, 307476, 331128, 341640, 358722, 384345, 398580, 413910, 478296, 512460, 538083, 551880, 597870, 614952, 717444, 768690, 797160, 827820, 896805, 1024920, 1076166, 1195740, 1434888, 1537380, 1655640, 1793610, 2152332, 2391480, 2690415, 3074760, 3587220, 4304664, 5380830, 7174440, 10761660, 21523320]

約数ペア:

[(1, 21523320), (2, 10761660), (3, 7174440), (4, 5380830), (5, 4304664), (6, 3587220), (7, 3074760), (8, 2690415), (9, 2391480), (10, 2152332), (12, 1793610), (13, 1655640), (14, 1537380), (15, 1434888), (18, 1195740), (20, 1076166), (21, 1024920), (24, 896805), (26, 827820), (27, 797160), (28, 768690), (30, 717444), (35, 614952), (36, 597870), (39, 551880), (40, 538083), (42, 512460), (45, 478296), (52, 413910), (54, 398580), (56, 384345), (60, 358722), (63, 341640), (65, 331128), (70, 307476), (72, 298935), (73, 294840), (78, 275940), (81, 265720), (84, 256230), (90, 239148), (91, 236520), (104, 206955), (105, 204984), (108, 199290), (117, 183960), (120, 179361), (126, 170820), (130, 165564), (135, 159432), (140, 153738), (146, 147420), (156, 137970), (162, 132860), (168, 128115), (180, 119574), (182, 118260), (189, 113880), (195, 110376), (210, 102492), (216, 99645), (219, 98280), (234, 91980), (252, 85410), (260, 82782), (270, 79716), (273, 78840), (280, 76869), (292, 73710), (312, 68985), (315, 68328), (324, 66430), (351, 61320), (360, 59787), (364, 59130), (365, 58968), (378, 56940), (390, 55188), (405, 53144), (420, 51246), (438, 49140), (455, 47304), (468, 45990), (504, 42705), (511, 42120), (520, 41391), (540, 39858), (546, 39420), (567, 37960), (584, 36855), (585, 36792), (630, 34164), (648, 33215), (657, 32760), (702, 30660), (728, 29565), (730, 29484), (756, 28470), (780, 27594), (810, 26572), (819, 26280), (840, 25623), (876, 24570), (910, 23652), (936, 22995), (945, 22776), (949, 22680), (1022, 21060), (1053, 20440), (1080, 19929), (1092, 19710), (1095, 19656), (1134, 18980), (1170, 18396), (1260, 17082), (1314, 16380), (1365, 15768), (1404, 15330), (1460, 14742), (1512, 14235), (1533, 14040), (1560, 13797), (1620, 13286), (1638, 13140), (1752, 12285), (1755, 12264), (1820, 11826), (1890, 11388), (1898, 11340), (1971, 10920), (2044, 10530), (2106, 10220), (2184, 9855), (2190, 9828), (2268, 9490), (2340, 9198), (2457, 8760), (2520, 8541), (2555, 8424), (2628, 8190), (2730, 7884), (2808, 7665), (2835, 7592), (2847, 7560), (2920, 7371), (3066, 7020), (3240, 6643), (3276, 6570), (3285, 6552), (3510, 6132), (3640, 5913), (3780, 5694), (3796, 5670), (3942, 5460), (4088, 5265), (4095, 5256), (4212, 5110), (4380, 4914), (4536, 4745), (4599, 4680)]