81018890

素因数分解:

$2^1\times 5^1\times {\mathrm{1151}}^1\times {\mathrm{7039}}^1$

素因数の和:8197

約数の個数: 16

約数和(自身を含む): 145981440

約数和(自身を除く): 64962550

約数列:

[1, 2, 5, 10, 1151, 2302, 5755, 7039, 11510, 14078, 35195, 70390, 8101889, 16203778, 40509445, 81018890]

約数ペア:

[(1, 81018890), (2, 40509445), (5, 16203778), (10, 8101889), (1151, 70390), (2302, 35195), (5755, 14078), (7039, 11510)]