1780974325

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{5479921}}^1$

素因数の和:5479944

約数の個数: 12

約数和(自身を含む): 2378286148

約数和(自身を除く): 597311823

約数列:

[1, 5, 13, 25, 65, 325, 5479921, 27399605, 71238973, 136998025, 356194865, 1780974325]

約数ペア:

[(1, 1780974325), (5, 356194865), (13, 136998025), (25, 71238973), (65, 27399605), (325, 5479921)]