647836840

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{383}}^1\times {\mathrm{863}}^1$

素因数の和:1271

約数の個数: 96

約数和(自身を含む): 1702010880

約数和(自身を除く): 1054174040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 383, 392, 490, 766, 863, 980, 1532, 1726, 1915, 1960, 2681, 3064, 3452, 3830, 4315, 5362, 6041, 6904, 7660, 8630, 10724, 12082, 13405, 15320, 17260, 18767, 21448, 24164, 26810, 30205, 34520, 37534, 42287, 48328, 53620, 60410, 75068, 84574, 93835, 107240, 120820, 150136, 169148, 187670, 211435, 241640, 330529, 338296, 375340, 422870, 661058, 750680, 845740, 1322116, 1652645, 1691480, 2313703, 2644232, 3305290, 4627406, 6610580, 9254812, 11568515, 13221160, 16195921, 18509624, 23137030, 32391842, 46274060, 64783684, 80979605, 92548120, 129567368, 161959210, 323918420, 647836840]

約数ペア:

[(1, 647836840), (2, 323918420), (4, 161959210), (5, 129567368), (7, 92548120), (8, 80979605), (10, 64783684), (14, 46274060), (20, 32391842), (28, 23137030), (35, 18509624), (40, 16195921), (49, 13221160), (56, 11568515), (70, 9254812), (98, 6610580), (140, 4627406), (196, 3305290), (245, 2644232), (280, 2313703), (383, 1691480), (392, 1652645), (490, 1322116), (766, 845740), (863, 750680), (980, 661058), (1532, 422870), (1726, 375340), (1915, 338296), (1960, 330529), (2681, 241640), (3064, 211435), (3452, 187670), (3830, 169148), (4315, 150136), (5362, 120820), (6041, 107240), (6904, 93835), (7660, 84574), (8630, 75068), (10724, 60410), (12082, 53620), (13405, 48328), (15320, 42287), (17260, 37534), (18767, 34520), (21448, 30205), (24164, 26810)]