18049160

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{919}}^1$

素因数の和:1421

約数の個数: 32

約数和(自身を含む): 40737600

約数和(自身を除く): 22688440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 919, 982, 1838, 1964, 2455, 3676, 3928, 4595, 4910, 7352, 9190, 9820, 18380, 19640, 36760, 451229, 902458, 1804916, 2256145, 3609832, 4512290, 9024580, 18049160]

約数ペア:

[(1, 18049160), (2, 9024580), (4, 4512290), (5, 3609832), (8, 2256145), (10, 1804916), (20, 902458), (40, 451229), (491, 36760), (919, 19640), (982, 18380), (1838, 9820), (1964, 9190), (2455, 7352), (3676, 4910), (3928, 4595)]