18557940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{7193}}^1$

素因数の和:7248

約数の個数: 48

約数和(自身を含む): 53178048

約数和(自身を除く): 34620108

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 430, 516, 645, 860, 1290, 2580, 7193, 14386, 21579, 28772, 35965, 43158, 71930, 86316, 107895, 143860, 215790, 309299, 431580, 618598, 927897, 1237196, 1546495, 1855794, 3092990, 3711588, 4639485, 6185980, 9278970, 18557940]

約数ペア:

[(1, 18557940), (2, 9278970), (3, 6185980), (4, 4639485), (5, 3711588), (6, 3092990), (10, 1855794), (12, 1546495), (15, 1237196), (20, 927897), (30, 618598), (43, 431580), (60, 309299), (86, 215790), (129, 143860), (172, 107895), (215, 86316), (258, 71930), (430, 43158), (516, 35965), (645, 28772), (860, 21579), (1290, 14386), (2580, 7193)]