81123890

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{114259}}^1$

素因数の和:114337

約数の個数: 16

約数和(自身を含む): 148080960

約数和(自身を除く): 66957070

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 114259, 228518, 571295, 1142590, 8112389, 16224778, 40561945, 81123890]

約数ペア:

[(1, 81123890), (2, 40561945), (5, 16224778), (10, 8112389), (71, 1142590), (142, 571295), (355, 228518), (710, 114259)]