20866440

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{24841}}^1$

素因数の和:24862

約数の個数: 64

約数和(自身を含む): 71544960

約数和(自身を除く): 50678520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 24841, 49682, 74523, 99364, 124205, 149046, 173887, 198728, 248410, 298092, 347774, 372615, 496820, 521661, 596184, 695548, 745230, 869435, 993640, 1043322, 1391096, 1490460, 1738870, 2086644, 2608305, 2980920, 3477740, 4173288, 5216610, 6955480, 10433220, 20866440]

約数ペア:

[(1, 20866440), (2, 10433220), (3, 6955480), (4, 5216610), (5, 4173288), (6, 3477740), (7, 2980920), (8, 2608305), (10, 2086644), (12, 1738870), (14, 1490460), (15, 1391096), (20, 1043322), (21, 993640), (24, 869435), (28, 745230), (30, 695548), (35, 596184), (40, 521661), (42, 496820), (56, 372615), (60, 347774), (70, 298092), (84, 248410), (105, 198728), (120, 173887), (140, 149046), (168, 124205), (210, 99364), (280, 74523), (420, 49682), (840, 24841)]