129376040

素因数分解:

$2^3\times 5^1\times {\mathrm{971}}^1\times {\mathrm{3331}}^1$

素因数の和:4313

約数の個数: 32

約数和(自身を含む): 291483360

約数和(自身を除く): 162107320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 971, 1942, 3331, 3884, 4855, 6662, 7768, 9710, 13324, 16655, 19420, 26648, 33310, 38840, 66620, 133240, 3234401, 6468802, 12937604, 16172005, 25875208, 32344010, 64688020, 129376040]

約数ペア:

[(1, 129376040), (2, 64688020), (4, 32344010), (5, 25875208), (8, 16172005), (10, 12937604), (20, 6468802), (40, 3234401), (971, 133240), (1942, 66620), (3331, 38840), (3884, 33310), (4855, 26648), (6662, 19420), (7768, 16655), (9710, 13324)]