31506920

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{16759}}^1$

素因数の和:16817

約数の個数: 32

約数和(自身を含む): 72403200

約数和(自身を除く): 40896280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 16759, 33518, 67036, 83795, 134072, 167590, 335180, 670360, 787673, 1575346, 3150692, 3938365, 6301384, 7876730, 15753460, 31506920]

約数ペア:

[(1, 31506920), (2, 15753460), (4, 7876730), (5, 6301384), (8, 3938365), (10, 3150692), (20, 1575346), (40, 787673), (47, 670360), (94, 335180), (188, 167590), (235, 134072), (376, 83795), (470, 67036), (940, 33518), (1880, 16759)]