81473990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{626723}}^1$

素因数の和:626743

約数の個数: 16

約数和(自身を含む): 157934448

約数和(自身を除く): 76460458

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 626723, 1253446, 3133615, 6267230, 8147399, 16294798, 40736995, 81473990]

約数ペア:

[(1, 81473990), (2, 40736995), (5, 16294798), (10, 8147399), (13, 6267230), (26, 3133615), (65, 1253446), (130, 626723)]