243757160

素因数分解:

$2^3\times 5^1\times {\mathrm{691}}^1\times {\mathrm{8819}}^1$

素因数の和:9521

約数の個数: 32

約数和(自身を含む): 549309600

約数和(自身を除く): 305552440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 691, 1382, 2764, 3455, 5528, 6910, 8819, 13820, 17638, 27640, 35276, 44095, 70552, 88190, 176380, 352760, 6093929, 12187858, 24375716, 30469645, 48751432, 60939290, 121878580, 243757160]

約数ペア:

[(1, 243757160), (2, 121878580), (4, 60939290), (5, 48751432), (8, 30469645), (10, 24375716), (20, 12187858), (40, 6093929), (691, 352760), (1382, 176380), (2764, 88190), (3455, 70552), (5528, 44095), (6910, 35276), (8819, 27640), (13820, 17638)]