279753640

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{163}}^1\times {\mathrm{401}}^1$

素因数の和:682

約数の個数: 64

約数和(自身を含む): 640820160

約数和(自身を除く): 361066520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 163, 214, 326, 401, 428, 535, 652, 802, 815, 856, 1070, 1304, 1604, 1630, 2005, 2140, 3208, 3260, 4010, 4280, 6520, 8020, 16040, 17441, 34882, 42907, 65363, 69764, 85814, 87205, 130726, 139528, 171628, 174410, 214535, 261452, 326815, 343256, 348820, 429070, 522904, 653630, 697640, 858140, 1307260, 1716280, 2614520, 6993841, 13987682, 27975364, 34969205, 55950728, 69938410, 139876820, 279753640]

約数ペア:

[(1, 279753640), (2, 139876820), (4, 69938410), (5, 55950728), (8, 34969205), (10, 27975364), (20, 13987682), (40, 6993841), (107, 2614520), (163, 1716280), (214, 1307260), (326, 858140), (401, 697640), (428, 653630), (535, 522904), (652, 429070), (802, 348820), (815, 343256), (856, 326815), (1070, 261452), (1304, 214535), (1604, 174410), (1630, 171628), (2005, 139528), (2140, 130726), (3208, 87205), (3260, 85814), (4010, 69764), (4280, 65363), (6520, 42907), (8020, 34882), (16040, 17441)]