256011660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1422287}}^1$

素因数の和:1422302

約数の個数: 36

約数和(自身を含む): 776569248

約数和(自身を除く): 520557588

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1422287, 2844574, 4266861, 5689148, 7111435, 8533722, 12800583, 14222870, 17067444, 21334305, 25601166, 28445740, 42668610, 51202332, 64002915, 85337220, 128005830, 256011660]

約数ペア:

[(1, 256011660), (2, 128005830), (3, 85337220), (4, 64002915), (5, 51202332), (6, 42668610), (9, 28445740), (10, 25601166), (12, 21334305), (15, 17067444), (18, 14222870), (20, 12800583), (30, 8533722), (36, 7111435), (45, 5689148), (60, 4266861), (90, 2844574), (180, 1422287)]