20185868

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 39299904

約数和(自身を除く): 19114036

約数列:

[1, 2, 4, 17, 34, 37, 68, 71, 74, 113, 142, 148, 226, 284, 452, 629, 1207, 1258, 1921, 2414, 2516, 2627, 3842, 4181, 4828, 5254, 7684, 8023, 8362, 10508, 16046, 16724, 32092, 44659, 71077, 89318, 136391, 142154, 178636, 272782, 284308, 296851, 545564, 593702, 1187404, 5046467, 10092934, 20185868]

約数ペア:

[(1, 20185868), (2, 10092934), (4, 5046467), (17, 1187404), (34, 593702), (37, 545564), (68, 296851), (71, 284308), (74, 272782), (113, 178636), (142, 142154), (148, 136391), (226, 89318), (284, 71077), (452, 44659), (629, 32092), (1207, 16724), (1258, 16046), (1921, 10508), (2414, 8362), (2516, 8023), (2627, 7684), (3842, 5254), (4181, 4828)]