130841680

素因数分解:

$2^4\times 5^1\times {\mathrm{491}}^1\times {\mathrm{3331}}^1$

素因数の和:3835

約数の個数: 40

約数和(自身を含む): 304917984

約数和(自身を除く): 174076304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 491, 982, 1964, 2455, 3331, 3928, 4910, 6662, 7856, 9820, 13324, 16655, 19640, 26648, 33310, 39280, 53296, 66620, 133240, 266480, 1635521, 3271042, 6542084, 8177605, 13084168, 16355210, 26168336, 32710420, 65420840, 130841680]

約数ペア:

[(1, 130841680), (2, 65420840), (4, 32710420), (5, 26168336), (8, 16355210), (10, 13084168), (16, 8177605), (20, 6542084), (40, 3271042), (80, 1635521), (491, 266480), (982, 133240), (1964, 66620), (2455, 53296), (3331, 39280), (3928, 33310), (4910, 26648), (6662, 19640), (7856, 16655), (9820, 13324)]