38139620

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{239}}^1$

素因数の和:428

約数の個数: 48

約数和(自身を含む): 82252800

約数和(自身を除く): 44113180

約数列:

[1, 2, 4, 5, 10, 20, 79, 101, 158, 202, 239, 316, 395, 404, 478, 505, 790, 956, 1010, 1195, 1580, 2020, 2390, 4780, 7979, 15958, 18881, 24139, 31916, 37762, 39895, 48278, 75524, 79790, 94405, 96556, 120695, 159580, 188810, 241390, 377620, 482780, 1906981, 3813962, 7627924, 9534905, 19069810, 38139620]

約数ペア:

[(1, 38139620), (2, 19069810), (4, 9534905), (5, 7627924), (10, 3813962), (20, 1906981), (79, 482780), (101, 377620), (158, 241390), (202, 188810), (239, 159580), (316, 120695), (395, 96556), (404, 94405), (478, 79790), (505, 75524), (790, 48278), (956, 39895), (1010, 37762), (1195, 31916), (1580, 24139), (2020, 18881), (2390, 15958), (4780, 7979)]