31471760

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{317}}^1$

素因数の和:420

約数の個数: 80

約数和(自身を含む): 78785136

約数和(自身を除く): 47313376

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 73, 80, 85, 136, 146, 170, 272, 292, 317, 340, 365, 584, 634, 680, 730, 1168, 1241, 1268, 1360, 1460, 1585, 2482, 2536, 2920, 3170, 4964, 5072, 5389, 5840, 6205, 6340, 9928, 10778, 12410, 12680, 19856, 21556, 23141, 24820, 25360, 26945, 43112, 46282, 49640, 53890, 86224, 92564, 99280, 107780, 115705, 185128, 215560, 231410, 370256, 393397, 431120, 462820, 786794, 925640, 1573588, 1851280, 1966985, 3147176, 3933970, 6294352, 7867940, 15735880, 31471760]

約数ペア:

[(1, 31471760), (2, 15735880), (4, 7867940), (5, 6294352), (8, 3933970), (10, 3147176), (16, 1966985), (17, 1851280), (20, 1573588), (34, 925640), (40, 786794), (68, 462820), (73, 431120), (80, 393397), (85, 370256), (136, 231410), (146, 215560), (170, 185128), (272, 115705), (292, 107780), (317, 99280), (340, 92564), (365, 86224), (584, 53890), (634, 49640), (680, 46282), (730, 43112), (1168, 26945), (1241, 25360), (1268, 24820), (1360, 23141), (1460, 21556), (1585, 19856), (2482, 12680), (2536, 12410), (2920, 10778), (3170, 9928), (4964, 6340), (5072, 6205), (5389, 5840)]