20416732

素因数分解:

$2^2\times 7^3\times {\mathrm{23}}^1\times {\mathrm{647}}^1$

素因数の和:695

約数の個数: 48

約数和(自身を含む): 43545600

約数和(自身を除く): 23128868

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 49, 92, 98, 161, 196, 322, 343, 644, 647, 686, 1127, 1294, 1372, 2254, 2588, 4508, 4529, 7889, 9058, 14881, 15778, 18116, 29762, 31556, 31703, 59524, 63406, 104167, 126812, 208334, 221921, 416668, 443842, 729169, 887684, 1458338, 2916676, 5104183, 10208366, 20416732]

約数ペア:

[(1, 20416732), (2, 10208366), (4, 5104183), (7, 2916676), (14, 1458338), (23, 887684), (28, 729169), (46, 443842), (49, 416668), (92, 221921), (98, 208334), (161, 126812), (196, 104167), (322, 63406), (343, 59524), (644, 31703), (647, 31556), (686, 29762), (1127, 18116), (1294, 15778), (1372, 14881), (2254, 9058), (2588, 7889), (4508, 4529)]