81708430

素因数分解:

$2^1\times 5^1\times {\mathrm{521}}^1\times {\mathrm{15683}}^1$

素因数の和:16211

約数の個数: 16

約数和(自身を含む): 147366864

約数和(自身を除く): 65658434

約数列:

[1, 2, 5, 10, 521, 1042, 2605, 5210, 15683, 31366, 78415, 156830, 8170843, 16341686, 40854215, 81708430]

約数ペア:

[(1, 81708430), (2, 40854215), (5, 16341686), (10, 8170843), (521, 156830), (1042, 78415), (2605, 31366), (5210, 15683)]