18179810

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1$

素因数の和:227

約数の個数: 64

約数和(自身を含む): 38102400

約数和(自身を除く): 19922590

約数列:

[1, 2, 5, 10, 11, 22, 29, 41, 55, 58, 82, 110, 139, 145, 205, 278, 290, 319, 410, 451, 638, 695, 902, 1189, 1390, 1529, 1595, 2255, 2378, 3058, 3190, 4031, 4510, 5699, 5945, 7645, 8062, 11398, 11890, 13079, 15290, 20155, 26158, 28495, 40310, 44341, 56990, 62689, 65395, 88682, 125378, 130790, 165271, 221705, 313445, 330542, 443410, 626890, 826355, 1652710, 1817981, 3635962, 9089905, 18179810]

約数ペア:

[(1, 18179810), (2, 9089905), (5, 3635962), (10, 1817981), (11, 1652710), (22, 826355), (29, 626890), (41, 443410), (55, 330542), (58, 313445), (82, 221705), (110, 165271), (139, 130790), (145, 125378), (205, 88682), (278, 65395), (290, 62689), (319, 56990), (410, 44341), (451, 40310), (638, 28495), (695, 26158), (902, 20155), (1189, 15290), (1390, 13079), (1529, 11890), (1595, 11398), (2255, 8062), (2378, 7645), (3058, 5945), (3190, 5699), (4031, 4510)]