16308980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{19889}}^1$

素因数の和:19939

約数の個数: 24

約数和(自身を含む): 35085960

約数和(自身を除く): 18776980

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 19889, 39778, 79556, 99445, 198890, 397780, 815449, 1630898, 3261796, 4077245, 8154490, 16308980]

約数ペア:

[(1, 16308980), (2, 8154490), (4, 4077245), (5, 3261796), (10, 1630898), (20, 815449), (41, 397780), (82, 198890), (164, 99445), (205, 79556), (410, 39778), (820, 19889)]