16521960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1$

素因数の和:140

約数の個数: 256

約数和(自身を含む): 65318400

約数和(自身を除く): 48796440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 17, 20, 21, 24, 26, 28, 30, 34, 35, 39, 40, 42, 51, 52, 56, 60, 65, 68, 70, 78, 84, 85, 89, 91, 102, 104, 105, 119, 120, 130, 136, 140, 156, 168, 170, 178, 182, 195, 204, 210, 221, 238, 255, 260, 267, 273, 280, 312, 340, 356, 357, 364, 390, 408, 420, 442, 445, 455, 476, 510, 520, 534, 546, 595, 623, 663, 680, 712, 714, 728, 780, 840, 884, 890, 910, 952, 1020, 1068, 1092, 1105, 1157, 1190, 1246, 1326, 1335, 1365, 1428, 1513, 1547, 1560, 1768, 1780, 1785, 1820, 1869, 2040, 2136, 2184, 2210, 2314, 2380, 2492, 2652, 2670, 2730, 2856, 3026, 3094, 3115, 3315, 3471, 3560, 3570, 3640, 3738, 4420, 4539, 4628, 4641, 4760, 4984, 5304, 5340, 5460, 5785, 6052, 6188, 6230, 6630, 6942, 7140, 7476, 7565, 7735, 8099, 8840, 9078, 9256, 9282, 9345, 10591, 10680, 10920, 11570, 12104, 12376, 12460, 13260, 13884, 14280, 14952, 15130, 15470, 16198, 17355, 18156, 18564, 18690, 19669, 21182, 22695, 23140, 23205, 24297, 24920, 26520, 27768, 30260, 30940, 31773, 32396, 34710, 36312, 37128, 37380, 39338, 40495, 42364, 45390, 46280, 46410, 48594, 52955, 59007, 60520, 61880, 63546, 64792, 69420, 74760, 78676, 80990, 84728, 90780, 92820, 97188, 98345, 105910, 118014, 121485, 127092, 137683, 138840, 157352, 158865, 161980, 181560, 185640, 194376, 196690, 211820, 236028, 242970, 254184, 275366, 295035, 317730, 323960, 393380, 413049, 423640, 472056, 485940, 550732, 590070, 635460, 688415, 786760, 826098, 971880, 1101464, 1180140, 1270920, 1376830, 1652196, 2065245, 2360280, 2753660, 3304392, 4130490, 5507320, 8260980, 16521960]

約数ペア:

[(1, 16521960), (2, 8260980), (3, 5507320), (4, 4130490), (5, 3304392), (6, 2753660), (7, 2360280), (8, 2065245), (10, 1652196), (12, 1376830), (13, 1270920), (14, 1180140), (15, 1101464), (17, 971880), (20, 826098), (21, 786760), (24, 688415), (26, 635460), (28, 590070), (30, 550732), (34, 485940), (35, 472056), (39, 423640), (40, 413049), (42, 393380), (51, 323960), (52, 317730), (56, 295035), (60, 275366), (65, 254184), (68, 242970), (70, 236028), (78, 211820), (84, 196690), (85, 194376), (89, 185640), (91, 181560), (102, 161980), (104, 158865), (105, 157352), (119, 138840), (120, 137683), (130, 127092), (136, 121485), (140, 118014), (156, 105910), (168, 98345), (170, 97188), (178, 92820), (182, 90780), (195, 84728), (204, 80990), (210, 78676), (221, 74760), (238, 69420), (255, 64792), (260, 63546), (267, 61880), (273, 60520), (280, 59007), (312, 52955), (340, 48594), (356, 46410), (357, 46280), (364, 45390), (390, 42364), (408, 40495), (420, 39338), (442, 37380), (445, 37128), (455, 36312), (476, 34710), (510, 32396), (520, 31773), (534, 30940), (546, 30260), (595, 27768), (623, 26520), (663, 24920), (680, 24297), (712, 23205), (714, 23140), (728, 22695), (780, 21182), (840, 19669), (884, 18690), (890, 18564), (910, 18156), (952, 17355), (1020, 16198), (1068, 15470), (1092, 15130), (1105, 14952), (1157, 14280), (1190, 13884), (1246, 13260), (1326, 12460), (1335, 12376), (1365, 12104), (1428, 11570), (1513, 10920), (1547, 10680), (1560, 10591), (1768, 9345), (1780, 9282), (1785, 9256), (1820, 9078), (1869, 8840), (2040, 8099), (2136, 7735), (2184, 7565), (2210, 7476), (2314, 7140), (2380, 6942), (2492, 6630), (2652, 6230), (2670, 6188), (2730, 6052), (2856, 5785), (3026, 5460), (3094, 5340), (3115, 5304), (3315, 4984), (3471, 4760), (3560, 4641), (3570, 4628), (3640, 4539), (3738, 4420)]