63721580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{245083}}^1$

素因数の和:245105

約数の個数: 24

約数和(自身を含む): 144109392

約数和(自身を除く): 80387812

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 245083, 490166, 980332, 1225415, 2450830, 3186079, 4901660, 6372158, 12744316, 15930395, 31860790, 63721580]

約数ペア:

[(1, 63721580), (2, 31860790), (4, 15930395), (5, 12744316), (10, 6372158), (13, 4901660), (20, 3186079), (26, 2450830), (52, 1225415), (65, 980332), (130, 490166), (260, 245083)]