128043640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^2\times {\mathrm{3331}}^1$

素因数の和:3404

約数の個数: 48

約数和(自身を含む): 297780840

約数和(自身を除く): 169737200

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 961, 1240, 1922, 3331, 3844, 4805, 6662, 7688, 9610, 13324, 16655, 19220, 26648, 33310, 38440, 66620, 103261, 133240, 206522, 413044, 516305, 826088, 1032610, 2065220, 3201091, 4130440, 6402182, 12804364, 16005455, 25608728, 32010910, 64021820, 128043640]

約数ペア:

[(1, 128043640), (2, 64021820), (4, 32010910), (5, 25608728), (8, 16005455), (10, 12804364), (20, 6402182), (31, 4130440), (40, 3201091), (62, 2065220), (124, 1032610), (155, 826088), (248, 516305), (310, 413044), (620, 206522), (961, 133240), (1240, 103261), (1922, 66620), (3331, 38440), (3844, 33310), (4805, 26648), (6662, 19220), (7688, 16655), (9610, 13324)]