18850840

素因数分解:

$2^3\times 5^1\times {\mathrm{151}}^1\times {\mathrm{3121}}^1$

素因数の和:3283

約数の個数: 32

約数和(自身を含む): 42708960

約数和(自身を除く): 23858120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 151, 302, 604, 755, 1208, 1510, 3020, 3121, 6040, 6242, 12484, 15605, 24968, 31210, 62420, 124840, 471271, 942542, 1885084, 2356355, 3770168, 4712710, 9425420, 18850840]

約数ペア:

[(1, 18850840), (2, 9425420), (4, 4712710), (5, 3770168), (8, 2356355), (10, 1885084), (20, 942542), (40, 471271), (151, 124840), (302, 62420), (604, 31210), (755, 24968), (1208, 15605), (1510, 12484), (3020, 6242), (3121, 6040)]