31782010

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{197}}^1$

素因数の和:307

約数の個数: 64

約数和(自身を含む): 66461472

約数和(自身を除く): 34679462

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 73, 85, 130, 146, 170, 197, 221, 365, 394, 442, 730, 949, 985, 1105, 1241, 1898, 1970, 2210, 2482, 2561, 3349, 4745, 5122, 6205, 6698, 9490, 12410, 12805, 14381, 16133, 16745, 25610, 28762, 32266, 33490, 43537, 71905, 80665, 87074, 143810, 161330, 186953, 217685, 244477, 373906, 435370, 488954, 934765, 1222385, 1869530, 2444770, 3178201, 6356402, 15891005, 31782010]

約数ペア:

[(1, 31782010), (2, 15891005), (5, 6356402), (10, 3178201), (13, 2444770), (17, 1869530), (26, 1222385), (34, 934765), (65, 488954), (73, 435370), (85, 373906), (130, 244477), (146, 217685), (170, 186953), (197, 161330), (221, 143810), (365, 87074), (394, 80665), (442, 71905), (730, 43537), (949, 33490), (985, 32266), (1105, 28762), (1241, 25610), (1898, 16745), (1970, 16133), (2210, 14381), (2482, 12805), (2561, 12410), (3349, 9490), (4745, 6698), (5122, 6205)]