31315570

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{359}}^1$

素因数の和:451

約数の個数: 64

約数和(自身を含む): 67495680

約数和(自身を除く): 36180110

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 61, 65, 110, 122, 130, 143, 286, 305, 359, 610, 671, 715, 718, 793, 1342, 1430, 1586, 1795, 3355, 3590, 3949, 3965, 4667, 6710, 7898, 7930, 8723, 9334, 17446, 19745, 21899, 23335, 39490, 43615, 43798, 46670, 51337, 87230, 102674, 109495, 218990, 240889, 256685, 284687, 481778, 513370, 569374, 1204445, 1423435, 2408890, 2846870, 3131557, 6263114, 15657785, 31315570]

約数ペア:

[(1, 31315570), (2, 15657785), (5, 6263114), (10, 3131557), (11, 2846870), (13, 2408890), (22, 1423435), (26, 1204445), (55, 569374), (61, 513370), (65, 481778), (110, 284687), (122, 256685), (130, 240889), (143, 218990), (286, 109495), (305, 102674), (359, 87230), (610, 51337), (671, 46670), (715, 43798), (718, 43615), (793, 39490), (1342, 23335), (1430, 21899), (1586, 19745), (1795, 17446), (3355, 9334), (3590, 8723), (3949, 7930), (3965, 7898), (4667, 6710)]