20403650

素因数分解:

$2^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{269}}^1$

素因数の和:359

約数の個数: 48

約数和(自身を含む): 40075560

約数和(自身を除く): 19671910

約数列:

[1, 2, 5, 10, 25, 37, 41, 50, 74, 82, 185, 205, 269, 370, 410, 538, 925, 1025, 1345, 1517, 1850, 2050, 2690, 3034, 6725, 7585, 9953, 11029, 13450, 15170, 19906, 22058, 37925, 49765, 55145, 75850, 99530, 110290, 248825, 275725, 408073, 497650, 551450, 816146, 2040365, 4080730, 10201825, 20403650]

約数ペア:

[(1, 20403650), (2, 10201825), (5, 4080730), (10, 2040365), (25, 816146), (37, 551450), (41, 497650), (50, 408073), (74, 275725), (82, 248825), (185, 110290), (205, 99530), (269, 75850), (370, 55145), (410, 49765), (538, 37925), (925, 22058), (1025, 19906), (1345, 15170), (1517, 13450), (1850, 11029), (2050, 9953), (2690, 7585), (3034, 6725)]