20181691972

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{1627}}^1\times {\mathrm{2111}}^1$

素因数の和:3868

約数の個数: 48

約数和(自身を含む): 38413089792

約数和(自身を除く): 18231397820

約数列:

[1, 2, 4, 13, 26, 52, 113, 226, 452, 1469, 1627, 2111, 2938, 3254, 4222, 5876, 6508, 8444, 21151, 27443, 42302, 54886, 84604, 109772, 183851, 238543, 367702, 477086, 735404, 954172, 2390063, 3101059, 3434597, 4780126, 6202118, 6869194, 9560252, 12404236, 13738388, 44649761, 89299522, 178599044, 388109461, 776218922, 1552437844, 5045422993, 10090845986, 20181691972]

約数ペア:

[(1, 20181691972), (2, 10090845986), (4, 5045422993), (13, 1552437844), (26, 776218922), (52, 388109461), (113, 178599044), (226, 89299522), (452, 44649761), (1469, 13738388), (1627, 12404236), (2111, 9560252), (2938, 6869194), (3254, 6202118), (4222, 4780126), (5876, 3434597), (6508, 3101059), (8444, 2390063), (21151, 954172), (27443, 735404), (42302, 477086), (54886, 367702), (84604, 238543), (109772, 183851)]