72319120

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{21023}}^1$

素因数の和:21079

約数の個数: 40

約数和(自身を含む): 172060416

約数和(自身を除く): 99741296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 21023, 42046, 84092, 105115, 168184, 210230, 336368, 420460, 840920, 903989, 1681840, 1807978, 3615956, 4519945, 7231912, 9039890, 14463824, 18079780, 36159560, 72319120]

約数ペア:

[(1, 72319120), (2, 36159560), (4, 18079780), (5, 14463824), (8, 9039890), (10, 7231912), (16, 4519945), (20, 3615956), (40, 1807978), (43, 1681840), (80, 903989), (86, 840920), (172, 420460), (215, 336368), (344, 210230), (430, 168184), (688, 105115), (860, 84092), (1720, 42046), (3440, 21023)]