87431580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{485731}}^1$

素因数の和:485746

約数の個数: 36

約数和(自身を含む): 265209672

約数和(自身を除く): 177778092

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 485731, 971462, 1457193, 1942924, 2428655, 2914386, 4371579, 4857310, 5828772, 7285965, 8743158, 9714620, 14571930, 17486316, 21857895, 29143860, 43715790, 87431580]

約数ペア:

[(1, 87431580), (2, 43715790), (3, 29143860), (4, 21857895), (5, 17486316), (6, 14571930), (9, 9714620), (10, 8743158), (12, 7285965), (15, 5828772), (18, 4857310), (20, 4371579), (30, 2914386), (36, 2428655), (45, 1942924), (60, 1457193), (90, 971462), (180, 485731)]