1239571840

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{383}}^1\times {\mathrm{389}}^1$

素因数の和:804

約数の個数: 128

約数和(自身を含む): 3207859200

約数和(自身を除く): 1968287360

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 383, 389, 416, 520, 640, 766, 778, 832, 1040, 1532, 1556, 1664, 1915, 1945, 2080, 3064, 3112, 3830, 3890, 4160, 4979, 5057, 6128, 6224, 7660, 7780, 8320, 9958, 10114, 12256, 12448, 15320, 15560, 19916, 20228, 24512, 24895, 24896, 25285, 30640, 31120, 39832, 40456, 49024, 49790, 49792, 50570, 61280, 62240, 79664, 80912, 99580, 101140, 122560, 124480, 148987, 159328, 161824, 199160, 202280, 245120, 248960, 297974, 318656, 323648, 398320, 404560, 595948, 637312, 647296, 744935, 796640, 809120, 1191896, 1489870, 1593280, 1618240, 1936831, 2383792, 2979740, 3186560, 3236480, 3873662, 4767584, 5959480, 7747324, 9535168, 9684155, 11918960, 15494648, 19070336, 19368310, 23837920, 30989296, 38736620, 47675840, 61978592, 77473240, 95351680, 123957184, 154946480, 247914368, 309892960, 619785920, 1239571840]

約数ペア:

[(1, 1239571840), (2, 619785920), (4, 309892960), (5, 247914368), (8, 154946480), (10, 123957184), (13, 95351680), (16, 77473240), (20, 61978592), (26, 47675840), (32, 38736620), (40, 30989296), (52, 23837920), (64, 19368310), (65, 19070336), (80, 15494648), (104, 11918960), (128, 9684155), (130, 9535168), (160, 7747324), (208, 5959480), (260, 4767584), (320, 3873662), (383, 3236480), (389, 3186560), (416, 2979740), (520, 2383792), (640, 1936831), (766, 1618240), (778, 1593280), (832, 1489870), (1040, 1191896), (1532, 809120), (1556, 796640), (1664, 744935), (1915, 647296), (1945, 637312), (2080, 595948), (3064, 404560), (3112, 398320), (3830, 323648), (3890, 318656), (4160, 297974), (4979, 248960), (5057, 245120), (6128, 202280), (6224, 199160), (7660, 161824), (7780, 159328), (8320, 148987), (9958, 124480), (10114, 122560), (12256, 101140), (12448, 99580), (15320, 80912), (15560, 79664), (19916, 62240), (20228, 61280), (24512, 50570), (24895, 49792), (24896, 49790), (25285, 49024), (30640, 40456), (31120, 39832)]