12900340

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20807}}^1$

素因数の和:20847

約数の個数: 24

約数和(自身を含む): 27965952

約数和(自身を除く): 15065612

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 20807, 41614, 83228, 104035, 208070, 416140, 645017, 1290034, 2580068, 3225085, 6450170, 12900340]

約数ペア:

[(1, 12900340), (2, 6450170), (4, 3225085), (5, 2580068), (10, 1290034), (20, 645017), (31, 416140), (62, 208070), (124, 104035), (155, 83228), (310, 41614), (620, 20807)]