31854280

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{10909}}^1$

素因数の和:10993

約数の個数: 32

約数和(自身を含む): 72660600

約数和(自身を除く): 40806320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 10909, 21818, 43636, 54545, 87272, 109090, 218180, 436360, 796357, 1592714, 3185428, 3981785, 6370856, 7963570, 15927140, 31854280]

約数ペア:

[(1, 31854280), (2, 15927140), (4, 7963570), (5, 6370856), (8, 3981785), (10, 3185428), (20, 1592714), (40, 796357), (73, 436360), (146, 218180), (292, 109090), (365, 87272), (584, 54545), (730, 43636), (1460, 21818), (2920, 10909)]