81720160

素因数分解:

$2^5\times 5^1\times {\mathrm{510751}}^1$

素因数の和:510766

約数の個数: 24

約数和(自身を含む): 193064256

約数和(自身を除く): 111344096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 510751, 1021502, 2043004, 2553755, 4086008, 5107510, 8172016, 10215020, 16344032, 20430040, 40860080, 81720160]

約数ペア:

[(1, 81720160), (2, 40860080), (4, 20430040), (5, 16344032), (8, 10215020), (10, 8172016), (16, 5107510), (20, 4086008), (32, 2553755), (40, 2043004), (80, 1021502), (160, 510751)]