20548890

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1103}}^1$

素因数の和:1145

約数の個数: 80

約数和(自身を含む): 57708288

約数和(自身を除く): 37159398

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 27, 30, 45, 46, 54, 69, 81, 90, 115, 135, 138, 162, 207, 230, 270, 345, 405, 414, 621, 690, 810, 1035, 1103, 1242, 1863, 2070, 2206, 3105, 3309, 3726, 5515, 6210, 6618, 9315, 9927, 11030, 16545, 18630, 19854, 25369, 29781, 33090, 49635, 50738, 59562, 76107, 89343, 99270, 126845, 148905, 152214, 178686, 228321, 253690, 297810, 380535, 446715, 456642, 684963, 761070, 893430, 1141605, 1369926, 2054889, 2283210, 3424815, 4109778, 6849630, 10274445, 20548890]

約数ペア:

[(1, 20548890), (2, 10274445), (3, 6849630), (5, 4109778), (6, 3424815), (9, 2283210), (10, 2054889), (15, 1369926), (18, 1141605), (23, 893430), (27, 761070), (30, 684963), (45, 456642), (46, 446715), (54, 380535), (69, 297810), (81, 253690), (90, 228321), (115, 178686), (135, 152214), (138, 148905), (162, 126845), (207, 99270), (230, 89343), (270, 76107), (345, 59562), (405, 50738), (414, 49635), (621, 33090), (690, 29781), (810, 25369), (1035, 19854), (1103, 18630), (1242, 16545), (1863, 11030), (2070, 9927), (2206, 9315), (3105, 6618), (3309, 6210), (3726, 5515)]