64436800

素因数分解:

$2^6\times 5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1$

素因数の和:165

約数の個数: 168

約数和(自身を含む): 176881536

約数和(自身を除く): 112444736

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 25, 32, 34, 40, 46, 50, 64, 68, 80, 85, 92, 100, 103, 115, 136, 160, 170, 184, 200, 206, 230, 272, 320, 340, 368, 391, 400, 412, 425, 460, 515, 544, 575, 680, 736, 782, 800, 824, 850, 920, 1030, 1088, 1150, 1360, 1472, 1564, 1600, 1648, 1700, 1751, 1840, 1955, 2060, 2300, 2369, 2575, 2720, 3128, 3296, 3400, 3502, 3680, 3910, 4120, 4600, 4738, 5150, 5440, 6256, 6592, 6800, 7004, 7360, 7820, 8240, 8755, 9200, 9476, 9775, 10300, 11845, 12512, 13600, 14008, 15640, 16480, 17510, 18400, 18952, 19550, 20600, 23690, 25024, 27200, 28016, 31280, 32960, 35020, 36800, 37904, 39100, 40273, 41200, 43775, 47380, 56032, 59225, 62560, 70040, 75808, 78200, 80546, 82400, 87550, 94760, 112064, 118450, 125120, 140080, 151616, 156400, 161092, 164800, 175100, 189520, 201365, 236900, 280160, 312800, 322184, 350200, 379040, 402730, 473800, 560320, 625600, 644368, 700400, 758080, 805460, 947600, 1006825, 1288736, 1400800, 1610920, 1895200, 2013650, 2577472, 2801600, 3221840, 3790400, 4027300, 6443680, 8054600, 12887360, 16109200, 32218400, 64436800]

約数ペア:

[(1, 64436800), (2, 32218400), (4, 16109200), (5, 12887360), (8, 8054600), (10, 6443680), (16, 4027300), (17, 3790400), (20, 3221840), (23, 2801600), (25, 2577472), (32, 2013650), (34, 1895200), (40, 1610920), (46, 1400800), (50, 1288736), (64, 1006825), (68, 947600), (80, 805460), (85, 758080), (92, 700400), (100, 644368), (103, 625600), (115, 560320), (136, 473800), (160, 402730), (170, 379040), (184, 350200), (200, 322184), (206, 312800), (230, 280160), (272, 236900), (320, 201365), (340, 189520), (368, 175100), (391, 164800), (400, 161092), (412, 156400), (425, 151616), (460, 140080), (515, 125120), (544, 118450), (575, 112064), (680, 94760), (736, 87550), (782, 82400), (800, 80546), (824, 78200), (850, 75808), (920, 70040), (1030, 62560), (1088, 59225), (1150, 56032), (1360, 47380), (1472, 43775), (1564, 41200), (1600, 40273), (1648, 39100), (1700, 37904), (1751, 36800), (1840, 35020), (1955, 32960), (2060, 31280), (2300, 28016), (2369, 27200), (2575, 25024), (2720, 23690), (3128, 20600), (3296, 19550), (3400, 18952), (3502, 18400), (3680, 17510), (3910, 16480), (4120, 15640), (4600, 14008), (4738, 13600), (5150, 12512), (5440, 11845), (6256, 10300), (6592, 9775), (6800, 9476), (7004, 9200), (7360, 8755), (7820, 8240)]