128215845

素因数分解:

$3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{30637}}^1$

素因数の和:30682

約数の個数: 32

約数和(自身を含む): 235299840

約数和(自身を除く): 107083995

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 93, 135, 155, 279, 465, 837, 1395, 4185, 30637, 91911, 153185, 275733, 459555, 827199, 949747, 1378665, 2849241, 4135995, 4748735, 8547723, 14246205, 25643169, 42738615, 128215845]

約数ペア:

[(1, 128215845), (3, 42738615), (5, 25643169), (9, 14246205), (15, 8547723), (27, 4748735), (31, 4135995), (45, 2849241), (93, 1378665), (135, 949747), (155, 827199), (279, 459555), (465, 275733), (837, 153185), (1395, 91911), (4185, 30637)]