87241480

素因数分解:

$2^3\times 5^1\times {\mathrm{647}}^1\times {\mathrm{3371}}^1$

素因数の和:4029

約数の個数: 32

約数和(自身を含む): 196655040

約数和(自身を除く): 109413560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 647, 1294, 2588, 3235, 3371, 5176, 6470, 6742, 12940, 13484, 16855, 25880, 26968, 33710, 67420, 134840, 2181037, 4362074, 8724148, 10905185, 17448296, 21810370, 43620740, 87241480]

約数ペア:

[(1, 87241480), (2, 43620740), (4, 21810370), (5, 17448296), (8, 10905185), (10, 8724148), (20, 4362074), (40, 2181037), (647, 134840), (1294, 67420), (2588, 33710), (3235, 26968), (3371, 25880), (5176, 16855), (6470, 13484), (6742, 12940)]