31520788

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{197}}^1$

素因数の和:412

約数の個数: 48

約数和(自身を含む): 63567504

約数和(自身を除く): 32046716

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 181, 197, 221, 362, 394, 442, 724, 788, 884, 2353, 2561, 3077, 3349, 4706, 5122, 6154, 6698, 9412, 10244, 12308, 13396, 35657, 40001, 43537, 71314, 80002, 87074, 142628, 160004, 174148, 463541, 606169, 927082, 1212338, 1854164, 2424676, 7880197, 15760394, 31520788]

約数ペア:

[(1, 31520788), (2, 15760394), (4, 7880197), (13, 2424676), (17, 1854164), (26, 1212338), (34, 927082), (52, 606169), (68, 463541), (181, 174148), (197, 160004), (221, 142628), (362, 87074), (394, 80002), (442, 71314), (724, 43537), (788, 40001), (884, 35657), (2353, 13396), (2561, 12308), (3077, 10244), (3349, 9412), (4706, 6698), (5122, 6154)]