68783720

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{21767}}^1$

素因数の和:21857

約数の個数: 32

約数和(自身を含む): 156729600

約数和(自身を除く): 87945880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 21767, 43534, 87068, 108835, 174136, 217670, 435340, 870680, 1719593, 3439186, 6878372, 8597965, 13756744, 17195930, 34391860, 68783720]

約数ペア:

[(1, 68783720), (2, 34391860), (4, 17195930), (5, 13756744), (8, 8597965), (10, 6878372), (20, 3439186), (40, 1719593), (79, 870680), (158, 435340), (316, 217670), (395, 174136), (632, 108835), (790, 87068), (1580, 43534), (3160, 21767)]