2788240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{383}}^1$

素因数の和:416

約数の個数: 80

約数和(自身を含む): 7999488

約数和(自身を除く): 5211248

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 383, 455, 520, 560, 728, 766, 910, 1040, 1456, 1532, 1820, 1915, 2681, 3064, 3640, 3830, 4979, 5362, 6128, 7280, 7660, 9958, 10724, 13405, 15320, 19916, 21448, 24895, 26810, 30640, 34853, 39832, 42896, 49790, 53620, 69706, 79664, 99580, 107240, 139412, 174265, 199160, 214480, 278824, 348530, 398320, 557648, 697060, 1394120, 2788240]

約数ペア:

[(1, 2788240), (2, 1394120), (4, 697060), (5, 557648), (7, 398320), (8, 348530), (10, 278824), (13, 214480), (14, 199160), (16, 174265), (20, 139412), (26, 107240), (28, 99580), (35, 79664), (40, 69706), (52, 53620), (56, 49790), (65, 42896), (70, 39832), (80, 34853), (91, 30640), (104, 26810), (112, 24895), (130, 21448), (140, 19916), (182, 15320), (208, 13405), (260, 10724), (280, 9958), (364, 7660), (383, 7280), (455, 6128), (520, 5362), (560, 4979), (728, 3830), (766, 3640), (910, 3064), (1040, 2681), (1456, 1915), (1532, 1820)]