4920696080

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{691109}}^1$

素因数の和:691211

約数の個数: 40

約数和(自身を含む): 11569181400

約数和(自身を除く): 6648485320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 691109, 1382218, 2764436, 3455545, 5528872, 6911090, 11057744, 13822180, 27644360, 55288720, 61508701, 123017402, 246034804, 307543505, 492069608, 615087010, 984139216, 1230174020, 2460348040, 4920696080]

約数ペア:

[(1, 4920696080), (2, 2460348040), (4, 1230174020), (5, 984139216), (8, 615087010), (10, 492069608), (16, 307543505), (20, 246034804), (40, 123017402), (80, 61508701), (89, 55288720), (178, 27644360), (356, 13822180), (445, 11057744), (712, 6911090), (890, 5528872), (1424, 3455545), (1780, 2764436), (3560, 1382218), (7120, 691109)]