127840

素因数分解:

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

素因数の和:79

約数の個数: 48

約数和(自身を含む): 326592

約数和(自身を除く): 198752

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 47, 68, 80, 85, 94, 136, 160, 170, 188, 235, 272, 340, 376, 470, 544, 680, 752, 799, 940, 1360, 1504, 1598, 1880, 2720, 3196, 3760, 3995, 6392, 7520, 7990, 12784, 15980, 25568, 31960, 63920, 127840]

約数ペア:

[(1, 127840), (2, 63920), (4, 31960), (5, 25568), (8, 15980), (10, 12784), (16, 7990), (17, 7520), (20, 6392), (32, 3995), (34, 3760), (40, 3196), (47, 2720), (68, 1880), (80, 1598), (85, 1504), (94, 1360), (136, 940), (160, 799), (170, 752), (188, 680), (235, 544), (272, 470), (340, 376)]