19557720

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1$

素因数の和:239

約数の個数: 256

約数和(自身を含む): 80640000

約数和(自身を除く): 61082280

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, 78, 84, 90, 91, 104, 105, 108, 117, 120, 126, 130, 135, 140, 156, 168, 180, 182, 189, 195, 199, 210, 216, 234, 252, 260, 270, 273, 280, 312, 315, 351, 360, 364, 378, 390, 398, 420, 455, 468, 504, 520, 540, 546, 585, 597, 630, 702, 728, 756, 780, 796, 819, 840, 910, 936, 945, 995, 1080, 1092, 1170, 1194, 1260, 1365, 1393, 1404, 1512, 1560, 1592, 1638, 1755, 1791, 1820, 1890, 1990, 2184, 2340, 2388, 2457, 2520, 2587, 2730, 2786, 2808, 2985, 3276, 3510, 3582, 3640, 3780, 3980, 4095, 4179, 4680, 4776, 4914, 5174, 5373, 5460, 5572, 5970, 6552, 6965, 7020, 7164, 7560, 7761, 7960, 8190, 8358, 8955, 9828, 10348, 10746, 10920, 11144, 11940, 12285, 12537, 12935, 13930, 14040, 14328, 15522, 16380, 16716, 17910, 18109, 19656, 20696, 20895, 21492, 23283, 23880, 24570, 25074, 25870, 26865, 27860, 31044, 32760, 33432, 35820, 36218, 37611, 38805, 41790, 42984, 46566, 49140, 50148, 51740, 53730, 54327, 55720, 62088, 62685, 69849, 71640, 72436, 75222, 77610, 83580, 90545, 93132, 98280, 100296, 103480, 107460, 108654, 116415, 125370, 139698, 144872, 150444, 155220, 162981, 167160, 181090, 186264, 188055, 214920, 217308, 232830, 250740, 271635, 279396, 300888, 310440, 325962, 349245, 362180, 376110, 434616, 465660, 488943, 501480, 543270, 558792, 651924, 698490, 724360, 752220, 814905, 931320, 977886, 1086540, 1303848, 1396980, 1504440, 1629810, 1955772, 2173080, 2444715, 2793960, 3259620, 3911544, 4889430, 6519240, 9778860, 19557720]

約数ペア:

[(1, 19557720), (2, 9778860), (3, 6519240), (4, 4889430), (5, 3911544), (6, 3259620), (7, 2793960), (8, 2444715), (9, 2173080), (10, 1955772), (12, 1629810), (13, 1504440), (14, 1396980), (15, 1303848), (18, 1086540), (20, 977886), (21, 931320), (24, 814905), (26, 752220), (27, 724360), (28, 698490), (30, 651924), (35, 558792), (36, 543270), (39, 501480), (40, 488943), (42, 465660), (45, 434616), (52, 376110), (54, 362180), (56, 349245), (60, 325962), (63, 310440), (65, 300888), (70, 279396), (72, 271635), (78, 250740), (84, 232830), (90, 217308), (91, 214920), (104, 188055), (105, 186264), (108, 181090), (117, 167160), (120, 162981), (126, 155220), (130, 150444), (135, 144872), (140, 139698), (156, 125370), (168, 116415), (180, 108654), (182, 107460), (189, 103480), (195, 100296), (199, 98280), (210, 93132), (216, 90545), (234, 83580), (252, 77610), (260, 75222), (270, 72436), (273, 71640), (280, 69849), (312, 62685), (315, 62088), (351, 55720), (360, 54327), (364, 53730), (378, 51740), (390, 50148), (398, 49140), (420, 46566), (455, 42984), (468, 41790), (504, 38805), (520, 37611), (540, 36218), (546, 35820), (585, 33432), (597, 32760), (630, 31044), (702, 27860), (728, 26865), (756, 25870), (780, 25074), (796, 24570), (819, 23880), (840, 23283), (910, 21492), (936, 20895), (945, 20696), (995, 19656), (1080, 18109), (1092, 17910), (1170, 16716), (1194, 16380), (1260, 15522), (1365, 14328), (1393, 14040), (1404, 13930), (1512, 12935), (1560, 12537), (1592, 12285), (1638, 11940), (1755, 11144), (1791, 10920), (1820, 10746), (1890, 10348), (1990, 9828), (2184, 8955), (2340, 8358), (2388, 8190), (2457, 7960), (2520, 7761), (2587, 7560), (2730, 7164), (2786, 7020), (2808, 6965), (2985, 6552), (3276, 5970), (3510, 5572), (3582, 5460), (3640, 5373), (3780, 5174), (3980, 4914), (4095, 4776), (4179, 4680)]