18470920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{35521}}^1$

素因数の和:35545

約数の個数: 32

約数和(自身を含む): 44757720

約数和(自身を除く): 26286800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 35521, 71042, 142084, 177605, 284168, 355210, 461773, 710420, 923546, 1420840, 1847092, 2308865, 3694184, 4617730, 9235460, 18470920]

約数ペア:

[(1, 18470920), (2, 9235460), (4, 4617730), (5, 3694184), (8, 2308865), (10, 1847092), (13, 1420840), (20, 923546), (26, 710420), (40, 461773), (52, 355210), (65, 284168), (104, 177605), (130, 142084), (260, 71042), (520, 35521)]