49945025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{643}}^1$

素因数の和:905

約数の個数: 24

約数和(自身を含む): 67079040

約数和(自身を除く): 17134015

約数列:

[1, 5, 13, 25, 65, 239, 325, 643, 1195, 3107, 3215, 5975, 8359, 15535, 16075, 41795, 77675, 153677, 208975, 768385, 1997801, 3841925, 9989005, 49945025]

約数ペア:

[(1, 49945025), (5, 9989005), (13, 3841925), (25, 1997801), (65, 768385), (239, 208975), (325, 153677), (643, 77675), (1195, 41795), (3107, 16075), (3215, 15535), (5975, 8359)]