128840220

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{79531}}^1$

素因数の和:79552

約数の個数: 60

約数和(自身を含む): 404181624

約数和(自身を除く): 275341404

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 79531, 159062, 238593, 318124, 397655, 477186, 715779, 795310, 954372, 1192965, 1431558, 1590620, 2147337, 2385930, 2863116, 3578895, 4294674, 4771860, 6442011, 7157790, 8589348, 10736685, 12884022, 14315580, 21473370, 25768044, 32210055, 42946740, 64420110, 128840220]

約数ペア:

[(1, 128840220), (2, 64420110), (3, 42946740), (4, 32210055), (5, 25768044), (6, 21473370), (9, 14315580), (10, 12884022), (12, 10736685), (15, 8589348), (18, 7157790), (20, 6442011), (27, 4771860), (30, 4294674), (36, 3578895), (45, 2863116), (54, 2385930), (60, 2147337), (81, 1590620), (90, 1431558), (108, 1192965), (135, 954372), (162, 795310), (180, 715779), (270, 477186), (324, 397655), (405, 318124), (540, 238593), (810, 159062), (1620, 79531)]