80389600

素因数分解:

$2^5\times 5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{257}}^1$

素因数の和:317

約数の個数: 144

約数和(自身を含む): 217673568

約数和(自身を除く): 137283968

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 25, 32, 34, 40, 46, 50, 68, 80, 85, 92, 100, 115, 136, 160, 170, 184, 200, 230, 257, 272, 340, 368, 391, 400, 425, 460, 514, 544, 575, 680, 736, 782, 800, 850, 920, 1028, 1150, 1285, 1360, 1564, 1700, 1840, 1955, 2056, 2300, 2570, 2720, 3128, 3400, 3680, 3910, 4112, 4369, 4600, 5140, 5911, 6256, 6425, 6800, 7820, 8224, 8738, 9200, 9775, 10280, 11822, 12512, 12850, 13600, 15640, 17476, 18400, 19550, 20560, 21845, 23644, 25700, 29555, 31280, 34952, 39100, 41120, 43690, 47288, 51400, 59110, 62560, 69904, 78200, 87380, 94576, 100487, 102800, 109225, 118220, 139808, 147775, 156400, 174760, 189152, 200974, 205600, 218450, 236440, 295550, 312800, 349520, 401948, 436900, 472880, 502435, 591100, 699040, 803896, 873800, 945760, 1004870, 1182200, 1607792, 1747600, 2009740, 2364400, 2512175, 3215584, 3495200, 4019480, 4728800, 5024350, 8038960, 10048700, 16077920, 20097400, 40194800, 80389600]

約数ペア:

[(1, 80389600), (2, 40194800), (4, 20097400), (5, 16077920), (8, 10048700), (10, 8038960), (16, 5024350), (17, 4728800), (20, 4019480), (23, 3495200), (25, 3215584), (32, 2512175), (34, 2364400), (40, 2009740), (46, 1747600), (50, 1607792), (68, 1182200), (80, 1004870), (85, 945760), (92, 873800), (100, 803896), (115, 699040), (136, 591100), (160, 502435), (170, 472880), (184, 436900), (200, 401948), (230, 349520), (257, 312800), (272, 295550), (340, 236440), (368, 218450), (391, 205600), (400, 200974), (425, 189152), (460, 174760), (514, 156400), (544, 147775), (575, 139808), (680, 118220), (736, 109225), (782, 102800), (800, 100487), (850, 94576), (920, 87380), (1028, 78200), (1150, 69904), (1285, 62560), (1360, 59110), (1564, 51400), (1700, 47288), (1840, 43690), (1955, 41120), (2056, 39100), (2300, 34952), (2570, 31280), (2720, 29555), (3128, 25700), (3400, 23644), (3680, 21845), (3910, 20560), (4112, 19550), (4369, 18400), (4600, 17476), (5140, 15640), (5911, 13600), (6256, 12850), (6425, 12512), (6800, 11822), (7820, 10280), (8224, 9775), (8738, 9200)]