18486640

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{3449}}^1$

素因数の和:3529

約数の個数: 40

約数和(自身を含む): 43635600

約数和(自身を除く): 25148960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2680, 3449, 5360, 6898, 13796, 17245, 27592, 34490, 55184, 68980, 137960, 231083, 275920, 462166, 924332, 1155415, 1848664, 2310830, 3697328, 4621660, 9243320, 18486640]

約数ペア:

[(1, 18486640), (2, 9243320), (4, 4621660), (5, 3697328), (8, 2310830), (10, 1848664), (16, 1155415), (20, 924332), (40, 462166), (67, 275920), (80, 231083), (134, 137960), (268, 68980), (335, 55184), (536, 34490), (670, 27592), (1072, 17245), (1340, 13796), (2680, 6898), (3449, 5360)]