71387806480

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{541}}^1\times {\mathrm{20879}}^1$

素因数の和:21512

約数の個数: 80

約数和(自身を含む): 168396364800

約数和(自身を除く): 97008558320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 541, 632, 790, 1082, 1264, 1580, 2164, 2705, 3160, 4328, 5410, 6320, 8656, 10820, 20879, 21640, 41758, 42739, 43280, 83516, 85478, 104395, 167032, 170956, 208790, 213695, 334064, 341912, 417580, 427390, 683824, 835160, 854780, 1649441, 1670320, 1709560, 3298882, 3419120, 6597764, 8247205, 11295539, 13195528, 16494410, 22591078, 26391056, 32988820, 45182156, 56477695, 65977640, 90364312, 112955390, 131955280, 180728624, 225910780, 451821560, 892347581, 903643120, 1784695162, 3569390324, 4461737905, 7138780648, 8923475810, 14277561296, 17846951620, 35693903240, 71387806480]

約数ペア:

[(1, 71387806480), (2, 35693903240), (4, 17846951620), (5, 14277561296), (8, 8923475810), (10, 7138780648), (16, 4461737905), (20, 3569390324), (40, 1784695162), (79, 903643120), (80, 892347581), (158, 451821560), (316, 225910780), (395, 180728624), (541, 131955280), (632, 112955390), (790, 90364312), (1082, 65977640), (1264, 56477695), (1580, 45182156), (2164, 32988820), (2705, 26391056), (3160, 22591078), (4328, 16494410), (5410, 13195528), (6320, 11295539), (8656, 8247205), (10820, 6597764), (20879, 3419120), (21640, 3298882), (41758, 1709560), (42739, 1670320), (43280, 1649441), (83516, 854780), (85478, 835160), (104395, 683824), (167032, 427390), (170956, 417580), (208790, 341912), (213695, 334064)]