12840350

素因数分解:

$2^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{3617}}^1$

素因数の和:3700

約数の個数: 24

約数和(自身を含む): 24226128

約数和(自身を除く): 11385778

約数列:

[1, 2, 5, 10, 25, 50, 71, 142, 355, 710, 1775, 3550, 3617, 7234, 18085, 36170, 90425, 180850, 256807, 513614, 1284035, 2568070, 6420175, 12840350]

約数ペア:

[(1, 12840350), (2, 6420175), (5, 2568070), (10, 1284035), (25, 513614), (50, 256807), (71, 180850), (142, 90425), (355, 36170), (710, 18085), (1775, 7234), (3550, 3617)]