1279128760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{2767}}^1$

素因数の和:2925

約数の個数: 128

約数和(自身を含む): 3571384320

約数和(自身を除く): 2292255560

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 127, 130, 140, 182, 254, 260, 280, 364, 455, 508, 520, 635, 728, 889, 910, 1016, 1270, 1651, 1778, 1820, 2540, 2767, 3302, 3556, 3640, 4445, 5080, 5534, 6604, 7112, 8255, 8890, 11068, 11557, 13208, 13835, 16510, 17780, 19369, 22136, 23114, 27670, 33020, 35560, 35971, 38738, 46228, 55340, 57785, 66040, 71942, 77476, 92456, 96845, 110680, 115570, 143884, 154952, 179855, 193690, 231140, 251797, 287768, 351409, 359710, 387380, 462280, 503594, 702818, 719420, 774760, 1007188, 1258985, 1405636, 1438840, 1757045, 2014376, 2459863, 2517970, 2811272, 3514090, 4568317, 4919726, 5035940, 7028180, 9136634, 9839452, 10071880, 12299315, 14056360, 18273268, 19678904, 22841585, 24598630, 31978219, 36546536, 45683170, 49197260, 63956438, 91366340, 98394520, 127912876, 159891095, 182732680, 255825752, 319782190, 639564380, 1279128760]

約数ペア:

[(1, 1279128760), (2, 639564380), (4, 319782190), (5, 255825752), (7, 182732680), (8, 159891095), (10, 127912876), (13, 98394520), (14, 91366340), (20, 63956438), (26, 49197260), (28, 45683170), (35, 36546536), (40, 31978219), (52, 24598630), (56, 22841585), (65, 19678904), (70, 18273268), (91, 14056360), (104, 12299315), (127, 10071880), (130, 9839452), (140, 9136634), (182, 7028180), (254, 5035940), (260, 4919726), (280, 4568317), (364, 3514090), (455, 2811272), (508, 2517970), (520, 2459863), (635, 2014376), (728, 1757045), (889, 1438840), (910, 1405636), (1016, 1258985), (1270, 1007188), (1651, 774760), (1778, 719420), (1820, 702818), (2540, 503594), (2767, 462280), (3302, 387380), (3556, 359710), (3640, 351409), (4445, 287768), (5080, 251797), (5534, 231140), (6604, 193690), (7112, 179855), (8255, 154952), (8890, 143884), (11068, 115570), (11557, 110680), (13208, 96845), (13835, 92456), (16510, 77476), (17780, 71942), (19369, 66040), (22136, 57785), (23114, 55340), (27670, 46228), (33020, 38738), (35560, 35971)]