72000220

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{27481}}^1$

素因数の和:27621

約数の個数: 24

約数和(自身を含む): 152360208

約数和(自身を除く): 80359988

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 27481, 54962, 109924, 137405, 274810, 549620, 3600011, 7200022, 14400044, 18000055, 36000110, 72000220]

約数ペア:

[(1, 72000220), (2, 36000110), (4, 18000055), (5, 14400044), (10, 7200022), (20, 3600011), (131, 549620), (262, 274810), (524, 137405), (655, 109924), (1310, 54962), (2620, 27481)]