81235710

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{100291}}^1$

素因数の和:100310

約数の個数: 40

約数和(自身を含む): 218435976

約数和(自身を除く): 137200266

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810, 100291, 200582, 300873, 501455, 601746, 902619, 1002910, 1504365, 1805238, 2707857, 3008730, 4513095, 5415714, 8123571, 9026190, 13539285, 16247142, 27078570, 40617855, 81235710]

約数ペア:

[(1, 81235710), (2, 40617855), (3, 27078570), (5, 16247142), (6, 13539285), (9, 9026190), (10, 8123571), (15, 5415714), (18, 4513095), (27, 3008730), (30, 2707857), (45, 1805238), (54, 1504365), (81, 1002910), (90, 902619), (135, 601746), (162, 501455), (270, 300873), (405, 200582), (810, 100291)]