20611370

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{479}}^1$

素因数の和:830

約数の個数: 32

約数和(自身を含む): 40158720

約数和(自身を除く): 19547350

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 331, 479, 662, 958, 1655, 2395, 3310, 4303, 4790, 6227, 8606, 12454, 21515, 31135, 43030, 62270, 158549, 317098, 792745, 1585490, 2061137, 4122274, 10305685, 20611370]

約数ペア:

[(1, 20611370), (2, 10305685), (5, 4122274), (10, 2061137), (13, 1585490), (26, 792745), (65, 317098), (130, 158549), (331, 62270), (479, 43030), (662, 31135), (958, 21515), (1655, 12454), (2395, 8606), (3310, 6227), (4303, 4790)]