20117080

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{3671}}^1$

素因数の和:3819

約数の個数: 32

約数和(自身を含む): 45606240

約数和(自身を除く): 25489160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 3671, 5480, 7342, 14684, 18355, 29368, 36710, 73420, 146840, 502927, 1005854, 2011708, 2514635, 4023416, 5029270, 10058540, 20117080]

約数ペア:

[(1, 20117080), (2, 10058540), (4, 5029270), (5, 4023416), (8, 2514635), (10, 2011708), (20, 1005854), (40, 502927), (137, 146840), (274, 73420), (548, 36710), (685, 29368), (1096, 18355), (1370, 14684), (2740, 7342), (3671, 5480)]