28563640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{102013}}^1$

素因数の和:102031

約数の個数: 32

約数和(自身を含む): 73450080

約数和(自身を除く): 44886440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 102013, 204026, 408052, 510065, 714091, 816104, 1020130, 1428182, 2040260, 2856364, 3570455, 4080520, 5712728, 7140910, 14281820, 28563640]

約数ペア:

[(1, 28563640), (2, 14281820), (4, 7140910), (5, 5712728), (7, 4080520), (8, 3570455), (10, 2856364), (14, 2040260), (20, 1428182), (28, 1020130), (35, 816104), (40, 714091), (56, 510065), (70, 408052), (140, 204026), (280, 102013)]