13721620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{643}}^1$

素因数の和:760

約数の個数: 48

約数和(自身を含む): 31808448

約数和(自身を除く): 18086828

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 97, 110, 194, 220, 388, 485, 643, 970, 1067, 1286, 1940, 2134, 2572, 3215, 4268, 5335, 6430, 7073, 10670, 12860, 14146, 21340, 28292, 35365, 62371, 70730, 124742, 141460, 249484, 311855, 623710, 686081, 1247420, 1372162, 2744324, 3430405, 6860810, 13721620]

約数ペア:

[(1, 13721620), (2, 6860810), (4, 3430405), (5, 2744324), (10, 1372162), (11, 1247420), (20, 686081), (22, 623710), (44, 311855), (55, 249484), (97, 141460), (110, 124742), (194, 70730), (220, 62371), (388, 35365), (485, 28292), (643, 21340), (970, 14146), (1067, 12860), (1286, 10670), (1940, 7073), (2134, 6430), (2572, 5335), (3215, 4268)]