39128140

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{9931}}^1$

素因数の和:10137

約数の個数: 24

約数和(自身を含む): 82594512

約数和(自身を除く): 43466372

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 9931, 19862, 39724, 49655, 99310, 198620, 1956407, 3912814, 7825628, 9782035, 19564070, 39128140]

約数ペア:

[(1, 39128140), (2, 19564070), (4, 9782035), (5, 7825628), (10, 3912814), (20, 1956407), (197, 198620), (394, 99310), (788, 49655), (985, 39724), (1970, 19862), (3940, 9931)]