63920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1$

素因数の和:77

約数の個数: 40

約数和(自身を含む): 160704

約数和(自身を除く): 96784

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 47, 68, 80, 85, 94, 136, 170, 188, 235, 272, 340, 376, 470, 680, 752, 799, 940, 1360, 1598, 1880, 3196, 3760, 3995, 6392, 7990, 12784, 15980, 31960, 63920]

約数ペア:

[(1, 63920), (2, 31960), (4, 15980), (5, 12784), (8, 7990), (10, 6392), (16, 3995), (17, 3760), (20, 3196), (34, 1880), (40, 1598), (47, 1360), (68, 940), (80, 799), (85, 752), (94, 680), (136, 470), (170, 376), (188, 340), (235, 272)]