7661680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:218

約数の個数: 80

約数和(自身を含む): 19686240

約数和(自身を除く): 12024560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 53, 65, 80, 104, 106, 130, 139, 208, 212, 260, 265, 278, 424, 520, 530, 556, 689, 695, 848, 1040, 1060, 1112, 1378, 1390, 1807, 2120, 2224, 2756, 2780, 3445, 3614, 4240, 5512, 5560, 6890, 7228, 7367, 9035, 11024, 11120, 13780, 14456, 14734, 18070, 27560, 28912, 29468, 36140, 36835, 55120, 58936, 72280, 73670, 95771, 117872, 144560, 147340, 191542, 294680, 383084, 478855, 589360, 766168, 957710, 1532336, 1915420, 3830840, 7661680]

約数ペア:

[(1, 7661680), (2, 3830840), (4, 1915420), (5, 1532336), (8, 957710), (10, 766168), (13, 589360), (16, 478855), (20, 383084), (26, 294680), (40, 191542), (52, 147340), (53, 144560), (65, 117872), (80, 95771), (104, 73670), (106, 72280), (130, 58936), (139, 55120), (208, 36835), (212, 36140), (260, 29468), (265, 28912), (278, 27560), (424, 18070), (520, 14734), (530, 14456), (556, 13780), (689, 11120), (695, 11024), (848, 9035), (1040, 7367), (1060, 7228), (1112, 6890), (1378, 5560), (1390, 5512), (1807, 4240), (2120, 3614), (2224, 3445), (2756, 2780)]