18921000970

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{439}}^1\times {\mathrm{139033}}^1$

素因数の和:139510

約数の個数: 32

約数和(自身を含む): 35236776960

約数和(自身を除く): 16315775990

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 439, 878, 2195, 4390, 13609, 27218, 68045, 136090, 139033, 278066, 695165, 1390330, 4310023, 8620046, 21550115, 43100230, 61035487, 122070974, 305177435, 610354870, 1892100097, 3784200194, 9460500485, 18921000970]

約数ペア:

[(1, 18921000970), (2, 9460500485), (5, 3784200194), (10, 1892100097), (31, 610354870), (62, 305177435), (155, 122070974), (310, 61035487), (439, 43100230), (878, 21550115), (2195, 8620046), (4390, 4310023), (13609, 1390330), (27218, 695165), (68045, 278066), (136090, 139033)]