56742920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109121}}^1$

素因数の和:109145

約数の個数: 32

約数和(自身を含む): 137493720

約数和(自身を除く): 80750800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 109121, 218242, 436484, 545605, 872968, 1091210, 1418573, 2182420, 2837146, 4364840, 5674292, 7092865, 11348584, 14185730, 28371460, 56742920]

約数ペア:

[(1, 56742920), (2, 28371460), (4, 14185730), (5, 11348584), (8, 7092865), (10, 5674292), (13, 4364840), (20, 2837146), (26, 2182420), (40, 1418573), (52, 1091210), (65, 872968), (104, 545605), (130, 436484), (260, 218242), (520, 109121)]