72798640

素因数分解:

$2^4\times 5^1\times {\mathrm{167}}^1\times {\mathrm{5449}}^1$

素因数の和:5629

約数の個数: 40

約数和(自身を含む): 170301600

約数和(自身を除く): 97502960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 167, 334, 668, 835, 1336, 1670, 2672, 3340, 5449, 6680, 10898, 13360, 21796, 27245, 43592, 54490, 87184, 108980, 217960, 435920, 909983, 1819966, 3639932, 4549915, 7279864, 9099830, 14559728, 18199660, 36399320, 72798640]

約数ペア:

[(1, 72798640), (2, 36399320), (4, 18199660), (5, 14559728), (8, 9099830), (10, 7279864), (16, 4549915), (20, 3639932), (40, 1819966), (80, 909983), (167, 435920), (334, 217960), (668, 108980), (835, 87184), (1336, 54490), (1670, 43592), (2672, 27245), (3340, 21796), (5449, 13360), (6680, 10898)]