31555760

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{4993}}^1$

素因数の和:5085

約数の個数: 40

約数和(自身を含む): 74310720

約数和(自身を除く): 42754960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 4993, 6320, 9986, 19972, 24965, 39944, 49930, 79888, 99860, 199720, 394447, 399440, 788894, 1577788, 1972235, 3155576, 3944470, 6311152, 7888940, 15777880, 31555760]

約数ペア:

[(1, 31555760), (2, 15777880), (4, 7888940), (5, 6311152), (8, 3944470), (10, 3155576), (16, 1972235), (20, 1577788), (40, 788894), (79, 399440), (80, 394447), (158, 199720), (316, 99860), (395, 79888), (632, 49930), (790, 39944), (1264, 24965), (1580, 19972), (3160, 9986), (4993, 6320)]