890221730

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{379}}^1\times {\mathrm{7577}}^1$

素因数の和:7994

約数の個数: 32

約数和(自身を含む): 1658672640

約数和(自身を除く): 768450910

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 379, 758, 1895, 3790, 7577, 11749, 15154, 23498, 37885, 58745, 75770, 117490, 234887, 469774, 1174435, 2348870, 2871683, 5743366, 14358415, 28716830, 89022173, 178044346, 445110865, 890221730]

約数ペア:

[(1, 890221730), (2, 445110865), (5, 178044346), (10, 89022173), (31, 28716830), (62, 14358415), (155, 5743366), (310, 2871683), (379, 2348870), (758, 1174435), (1895, 469774), (3790, 234887), (7577, 117490), (11749, 75770), (15154, 58745), (23498, 37885)]