28732880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{317}}^1$

素因数の和:444

約数の個数: 80

約数和(自身を含む): 73816704

約数和(自身を除く): 45083824

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 103, 110, 176, 206, 220, 317, 412, 440, 515, 634, 824, 880, 1030, 1133, 1268, 1585, 1648, 2060, 2266, 2536, 3170, 3487, 4120, 4532, 5072, 5665, 6340, 6974, 8240, 9064, 11330, 12680, 13948, 17435, 18128, 22660, 25360, 27896, 32651, 34870, 45320, 55792, 65302, 69740, 90640, 130604, 139480, 163255, 261208, 278960, 326510, 359161, 522416, 653020, 718322, 1306040, 1436644, 1795805, 2612080, 2873288, 3591610, 5746576, 7183220, 14366440, 28732880]

約数ペア:

[(1, 28732880), (2, 14366440), (4, 7183220), (5, 5746576), (8, 3591610), (10, 2873288), (11, 2612080), (16, 1795805), (20, 1436644), (22, 1306040), (40, 718322), (44, 653020), (55, 522416), (80, 359161), (88, 326510), (103, 278960), (110, 261208), (176, 163255), (206, 139480), (220, 130604), (317, 90640), (412, 69740), (440, 65302), (515, 55792), (634, 45320), (824, 34870), (880, 32651), (1030, 27896), (1133, 25360), (1268, 22660), (1585, 18128), (1648, 17435), (2060, 13948), (2266, 12680), (2536, 11330), (3170, 9064), (3487, 8240), (4120, 6974), (4532, 6340), (5072, 5665)]