18288380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{857}}^1$

素因数の和:974

約数の個数: 48

約数和(自身を含む): 42378336

約数和(自身を除く): 24089956

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 97, 110, 194, 220, 388, 485, 857, 970, 1067, 1714, 1940, 2134, 3428, 4268, 4285, 5335, 8570, 9427, 10670, 17140, 18854, 21340, 37708, 47135, 83129, 94270, 166258, 188540, 332516, 415645, 831290, 914419, 1662580, 1828838, 3657676, 4572095, 9144190, 18288380]

約数ペア:

[(1, 18288380), (2, 9144190), (4, 4572095), (5, 3657676), (10, 1828838), (11, 1662580), (20, 914419), (22, 831290), (44, 415645), (55, 332516), (97, 188540), (110, 166258), (194, 94270), (220, 83129), (388, 47135), (485, 37708), (857, 21340), (970, 18854), (1067, 17140), (1714, 10670), (1940, 9427), (2134, 8570), (3428, 5335), (4268, 4285)]