12838340

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20707}}^1$

素因数の和:20747

約数の個数: 24

約数和(自身を含む): 27831552

約数和(自身を除く): 14993212

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 20707, 41414, 82828, 103535, 207070, 414140, 641917, 1283834, 2567668, 3209585, 6419170, 12838340]

約数ペア:

[(1, 12838340), (2, 6419170), (4, 3209585), (5, 2567668), (10, 1283834), (20, 641917), (31, 414140), (62, 207070), (124, 103535), (155, 82828), (310, 41414), (620, 20707)]