2819997505

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{647531}}^1$

素因数の和:647616

約数の個数: 16

約数和(自身を含む): 3698702784

約数和(自身を除く): 878705279

約数列:

[1, 5, 13, 65, 67, 335, 871, 4355, 647531, 3237655, 8417903, 42089515, 43384577, 216922885, 563999501, 2819997505]

約数ペア:

[(1, 2819997505), (5, 563999501), (13, 216922885), (65, 43384577), (67, 42089515), (335, 8417903), (871, 3237655), (4355, 647531)]