208044080

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{353}}^1$

素因数の和:558

約数の個数: 80

約数和(自身を含む): 497780640

約数和(自身を除く): 289736560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 139, 212, 265, 278, 353, 424, 530, 556, 695, 706, 848, 1060, 1112, 1390, 1412, 1765, 2120, 2224, 2780, 2824, 3530, 4240, 5560, 5648, 7060, 7367, 11120, 14120, 14734, 18709, 28240, 29468, 36835, 37418, 49067, 58936, 73670, 74836, 93545, 98134, 117872, 147340, 149672, 187090, 196268, 245335, 294680, 299344, 374180, 392536, 490670, 589360, 748360, 785072, 981340, 1496720, 1962680, 2600551, 3925360, 5201102, 10402204, 13002755, 20804408, 26005510, 41608816, 52011020, 104022040, 208044080]

約数ペア:

[(1, 208044080), (2, 104022040), (4, 52011020), (5, 41608816), (8, 26005510), (10, 20804408), (16, 13002755), (20, 10402204), (40, 5201102), (53, 3925360), (80, 2600551), (106, 1962680), (139, 1496720), (212, 981340), (265, 785072), (278, 748360), (353, 589360), (424, 490670), (530, 392536), (556, 374180), (695, 299344), (706, 294680), (848, 245335), (1060, 196268), (1112, 187090), (1390, 149672), (1412, 147340), (1765, 117872), (2120, 98134), (2224, 93545), (2780, 74836), (2824, 73670), (3530, 58936), (4240, 49067), (5560, 37418), (5648, 36835), (7060, 29468), (7367, 28240), (11120, 18709), (14120, 14734)]