31960

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1$

素因数の和:75

約数の個数: 32

約数和(自身を含む): 77760

約数和(自身を除く): 45800

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 47, 68, 85, 94, 136, 170, 188, 235, 340, 376, 470, 680, 799, 940, 1598, 1880, 3196, 3995, 6392, 7990, 15980, 31960]

約数ペア:

[(1, 31960), (2, 15980), (4, 7990), (5, 6392), (8, 3995), (10, 3196), (17, 1880), (20, 1598), (34, 940), (40, 799), (47, 680), (68, 470), (85, 376), (94, 340), (136, 235), (170, 188)]