290299120

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{51109}}^1$

素因数の和:51193

約数の個数: 40

約数和(自身を含む): 684465120

約数和(自身を除く): 394166000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 51109, 102218, 204436, 255545, 408872, 511090, 817744, 1022180, 2044360, 3628739, 4088720, 7257478, 14514956, 18143695, 29029912, 36287390, 58059824, 72574780, 145149560, 290299120]

約数ペア:

[(1, 290299120), (2, 145149560), (4, 72574780), (5, 58059824), (8, 36287390), (10, 29029912), (16, 18143695), (20, 14514956), (40, 7257478), (71, 4088720), (80, 3628739), (142, 2044360), (284, 1022180), (355, 817744), (568, 511090), (710, 408872), (1136, 255545), (1420, 204436), (2840, 102218), (5680, 51109)]