8622640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8291}}^1$

素因数の和:8317

約数の個数: 40

約数和(自身を含む): 21592368

約数和(自身を除く): 12969728

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 8291, 16582, 33164, 41455, 66328, 82910, 107783, 132656, 165820, 215566, 331640, 431132, 538915, 663280, 862264, 1077830, 1724528, 2155660, 4311320, 8622640]

約数ペア:

[(1, 8622640), (2, 4311320), (4, 2155660), (5, 1724528), (8, 1077830), (10, 862264), (13, 663280), (16, 538915), (20, 431132), (26, 331640), (40, 215566), (52, 165820), (65, 132656), (80, 107783), (104, 82910), (130, 66328), (208, 41455), (260, 33164), (520, 16582), (1040, 8291)]