86474980

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{229}}^1\times {\mathrm{239}}^1$

素因数の和:556

約数の個数: 48

約数和(自身を含む): 185472000

約数和(自身を除く): 98997020

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 229, 239, 316, 395, 458, 478, 790, 916, 956, 1145, 1195, 1580, 2290, 2390, 4580, 4780, 18091, 18881, 36182, 37762, 54731, 72364, 75524, 90455, 94405, 109462, 180910, 188810, 218924, 273655, 361820, 377620, 547310, 1094620, 4323749, 8647498, 17294996, 21618745, 43237490, 86474980]

約数ペア:

[(1, 86474980), (2, 43237490), (4, 21618745), (5, 17294996), (10, 8647498), (20, 4323749), (79, 1094620), (158, 547310), (229, 377620), (239, 361820), (316, 273655), (395, 218924), (458, 188810), (478, 180910), (790, 109462), (916, 94405), (956, 90455), (1145, 75524), (1195, 72364), (1580, 54731), (2290, 37762), (2390, 36182), (4580, 18881), (4780, 18091)]