218698810

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^2\times {\mathrm{251}}^1$

素因数の和:447

約数の個数: 48

約数和(自身を含む): 436054752

約数和(自身を除く): 217355942

約数列:

[1, 2, 5, 10, 11, 22, 55, 89, 110, 178, 251, 445, 502, 890, 979, 1255, 1958, 2510, 2761, 4895, 5522, 7921, 9790, 13805, 15842, 22339, 27610, 39605, 44678, 79210, 87131, 111695, 174262, 223390, 245729, 435655, 491458, 871310, 1228645, 1988171, 2457290, 3976342, 9940855, 19881710, 21869881, 43739762, 109349405, 218698810]

約数ペア:

[(1, 218698810), (2, 109349405), (5, 43739762), (10, 21869881), (11, 19881710), (22, 9940855), (55, 3976342), (89, 2457290), (110, 1988171), (178, 1228645), (251, 871310), (445, 491458), (502, 435655), (890, 245729), (979, 223390), (1255, 174262), (1958, 111695), (2510, 87131), (2761, 79210), (4895, 44678), (5522, 39605), (7921, 27610), (9790, 22339), (13805, 15842)]