81057730

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{623521}}^1$

素因数の和:623541

約数の個数: 16

約数和(自身を含む): 157127544

約数和(自身を除く): 76069814

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 623521, 1247042, 3117605, 6235210, 8105773, 16211546, 40528865, 81057730]

約数ペア:

[(1, 81057730), (2, 40528865), (5, 16211546), (10, 8105773), (13, 6235210), (26, 3117605), (65, 1247042), (130, 623521)]