40685020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1\times {\mathrm{311}}^1$

素因数の和:562

約数の個数: 48

約数和(自身を含む): 88897536

約数和(自身を除く): 48212516

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 211, 310, 311, 422, 620, 622, 844, 1055, 1244, 1555, 2110, 3110, 4220, 6220, 6541, 9641, 13082, 19282, 26164, 32705, 38564, 48205, 65410, 65621, 96410, 130820, 131242, 192820, 262484, 328105, 656210, 1312420, 2034251, 4068502, 8137004, 10171255, 20342510, 40685020]

約数ペア:

[(1, 40685020), (2, 20342510), (4, 10171255), (5, 8137004), (10, 4068502), (20, 2034251), (31, 1312420), (62, 656210), (124, 328105), (155, 262484), (211, 192820), (310, 131242), (311, 130820), (422, 96410), (620, 65621), (622, 65410), (844, 48205), (1055, 38564), (1244, 32705), (1555, 26164), (2110, 19282), (3110, 13082), (4220, 9641), (6220, 6541)]