18070280

素因数分解:

$2^3\times 5^1\times {\mathrm{271}}^1\times {\mathrm{1667}}^1$

素因数の和:1949

約数の個数: 32

約数和(自身を含む): 40832640

約数和(自身を除く): 22762360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 271, 542, 1084, 1355, 1667, 2168, 2710, 3334, 5420, 6668, 8335, 10840, 13336, 16670, 33340, 66680, 451757, 903514, 1807028, 2258785, 3614056, 4517570, 9035140, 18070280]

約数ペア:

[(1, 18070280), (2, 9035140), (4, 4517570), (5, 3614056), (8, 2258785), (10, 1807028), (20, 903514), (40, 451757), (271, 66680), (542, 33340), (1084, 16670), (1355, 13336), (1667, 10840), (2168, 8335), (2710, 6668), (3334, 5420)]