7040804920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{439}}^1\times {\mathrm{449}}^1$

素因数の和:965

約数の個数: 128

約数和(自身を含む): 17107200000

約数和(自身を除く): 10066395080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 47, 76, 94, 95, 152, 188, 190, 235, 376, 380, 439, 449, 470, 760, 878, 893, 898, 940, 1756, 1786, 1796, 1880, 2195, 2245, 3512, 3572, 3592, 4390, 4465, 4490, 7144, 8341, 8531, 8780, 8930, 8980, 16682, 17062, 17560, 17860, 17960, 20633, 21103, 33364, 34124, 35720, 41266, 41705, 42206, 42655, 66728, 68248, 82532, 83410, 84412, 85310, 103165, 105515, 165064, 166820, 168824, 170620, 197111, 206330, 211030, 333640, 341240, 392027, 394222, 400957, 412660, 422060, 784054, 788444, 801914, 825320, 844120, 985555, 1568108, 1576888, 1603828, 1960135, 1971110, 2004785, 3136216, 3207656, 3745109, 3920270, 3942220, 4009570, 7490218, 7840540, 7884440, 8019140, 9264217, 14980436, 15681080, 16038280, 18528434, 18725545, 29960872, 37056868, 37451090, 46321085, 74113736, 74902180, 92642170, 149804360, 176020123, 185284340, 352040246, 370568680, 704080492, 880100615, 1408160984, 1760201230, 3520402460, 7040804920]

約数ペア:

[(1, 7040804920), (2, 3520402460), (4, 1760201230), (5, 1408160984), (8, 880100615), (10, 704080492), (19, 370568680), (20, 352040246), (38, 185284340), (40, 176020123), (47, 149804360), (76, 92642170), (94, 74902180), (95, 74113736), (152, 46321085), (188, 37451090), (190, 37056868), (235, 29960872), (376, 18725545), (380, 18528434), (439, 16038280), (449, 15681080), (470, 14980436), (760, 9264217), (878, 8019140), (893, 7884440), (898, 7840540), (940, 7490218), (1756, 4009570), (1786, 3942220), (1796, 3920270), (1880, 3745109), (2195, 3207656), (2245, 3136216), (3512, 2004785), (3572, 1971110), (3592, 1960135), (4390, 1603828), (4465, 1576888), (4490, 1568108), (7144, 985555), (8341, 844120), (8531, 825320), (8780, 801914), (8930, 788444), (8980, 784054), (16682, 422060), (17062, 412660), (17560, 400957), (17860, 394222), (17960, 392027), (20633, 341240), (21103, 333640), (33364, 211030), (34124, 206330), (35720, 197111), (41266, 170620), (41705, 168824), (42206, 166820), (42655, 165064), (66728, 105515), (68248, 103165), (82532, 85310), (83410, 84412)]