179920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1$

素因数の和:199

約数の個数: 40

約数和(自身を含む): 453096

約数和(自身を除く): 273176

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 173, 208, 260, 346, 520, 692, 865, 1040, 1384, 1730, 2249, 2768, 3460, 4498, 6920, 8996, 11245, 13840, 17992, 22490, 35984, 44980, 89960, 179920]

約数ペア:

[(1, 179920), (2, 89960), (4, 44980), (5, 35984), (8, 22490), (10, 17992), (13, 13840), (16, 11245), (20, 8996), (26, 6920), (40, 4498), (52, 3460), (65, 2768), (80, 2249), (104, 1730), (130, 1384), (173, 1040), (208, 865), (260, 692), (346, 520)]