20258676

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{569}}^1$

素因数の和:645

約数の個数: 72

約数和(自身を含む): 54774720

約数和(自身を除く): 34516044

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 43, 46, 69, 86, 92, 129, 138, 172, 207, 258, 276, 387, 414, 516, 569, 774, 828, 989, 1138, 1548, 1707, 1978, 2276, 2967, 3414, 3956, 5121, 5934, 6828, 8901, 10242, 11868, 13087, 17802, 20484, 24467, 26174, 35604, 39261, 48934, 52348, 73401, 78522, 97868, 117783, 146802, 157044, 220203, 235566, 293604, 440406, 471132, 562741, 880812, 1125482, 1688223, 2250964, 3376446, 5064669, 6752892, 10129338, 20258676]

約数ペア:

[(1, 20258676), (2, 10129338), (3, 6752892), (4, 5064669), (6, 3376446), (9, 2250964), (12, 1688223), (18, 1125482), (23, 880812), (36, 562741), (43, 471132), (46, 440406), (69, 293604), (86, 235566), (92, 220203), (129, 157044), (138, 146802), (172, 117783), (207, 97868), (258, 78522), (276, 73401), (387, 52348), (414, 48934), (516, 39261), (569, 35604), (774, 26174), (828, 24467), (989, 20484), (1138, 17802), (1548, 13087), (1707, 11868), (1978, 10242), (2276, 8901), (2967, 6828), (3414, 5934), (3956, 5121)]