11655440

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1637}}^1$

素因数の和:1739

約数の個数: 40

約数和(自身を含む): 27420120

約数和(自身を除く): 15764680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1637, 1780, 3274, 3560, 6548, 7120, 8185, 13096, 16370, 26192, 32740, 65480, 130960, 145693, 291386, 582772, 728465, 1165544, 1456930, 2331088, 2913860, 5827720, 11655440]

約数ペア:

[(1, 11655440), (2, 5827720), (4, 2913860), (5, 2331088), (8, 1456930), (10, 1165544), (16, 728465), (20, 582772), (40, 291386), (80, 145693), (89, 130960), (178, 65480), (356, 32740), (445, 26192), (712, 16370), (890, 13096), (1424, 8185), (1637, 7120), (1780, 6548), (3274, 3560)]