31241320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1$

素因数の和:179

約数の個数: 128

約数和(自身を含む): 83721600

約数和(自身を除く): 52480280

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 37, 38, 40, 44, 55, 74, 76, 88, 95, 101, 110, 148, 152, 185, 190, 202, 209, 220, 296, 370, 380, 404, 407, 418, 440, 505, 703, 740, 760, 808, 814, 836, 1010, 1045, 1111, 1406, 1480, 1628, 1672, 1919, 2020, 2035, 2090, 2222, 2812, 3256, 3515, 3737, 3838, 4040, 4070, 4180, 4444, 5555, 5624, 7030, 7474, 7676, 7733, 8140, 8360, 8888, 9595, 11110, 14060, 14948, 15352, 15466, 16280, 18685, 19190, 21109, 22220, 28120, 29896, 30932, 37370, 38380, 38665, 41107, 42218, 44440, 61864, 71003, 74740, 76760, 77330, 82214, 84436, 105545, 142006, 149480, 154660, 164428, 168872, 205535, 211090, 284012, 309320, 328856, 355015, 411070, 422180, 568024, 710030, 781033, 822140, 844360, 1420060, 1562066, 1644280, 2840120, 3124132, 3905165, 6248264, 7810330, 15620660, 31241320]

約数ペア:

[(1, 31241320), (2, 15620660), (4, 7810330), (5, 6248264), (8, 3905165), (10, 3124132), (11, 2840120), (19, 1644280), (20, 1562066), (22, 1420060), (37, 844360), (38, 822140), (40, 781033), (44, 710030), (55, 568024), (74, 422180), (76, 411070), (88, 355015), (95, 328856), (101, 309320), (110, 284012), (148, 211090), (152, 205535), (185, 168872), (190, 164428), (202, 154660), (209, 149480), (220, 142006), (296, 105545), (370, 84436), (380, 82214), (404, 77330), (407, 76760), (418, 74740), (440, 71003), (505, 61864), (703, 44440), (740, 42218), (760, 41107), (808, 38665), (814, 38380), (836, 37370), (1010, 30932), (1045, 29896), (1111, 28120), (1406, 22220), (1480, 21109), (1628, 19190), (1672, 18685), (1919, 16280), (2020, 15466), (2035, 15352), (2090, 14948), (2222, 14060), (2812, 11110), (3256, 9595), (3515, 8888), (3737, 8360), (3838, 8140), (4040, 7733), (4070, 7676), (4180, 7474), (4444, 7030), (5555, 5624)]