199494540

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{158329}}^1$

素因数の和:158351

約数の個数: 72

約数和(自身を含む): 691585440

約数和(自身を除く): 492090900

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 158329, 316658, 474987, 633316, 791645, 949974, 1108303, 1424961, 1583290, 1899948, 2216606, 2374935, 2849922, 3166580, 3324909, 4433212, 4749870, 5541515, 5699844, 6649818, 7124805, 9499740, 9974727, 11083030, 13299636, 14249610, 16624545, 19949454, 22166060, 28499220, 33249090, 39898908, 49873635, 66498180, 99747270, 199494540]

約数ペア:

[(1, 199494540), (2, 99747270), (3, 66498180), (4, 49873635), (5, 39898908), (6, 33249090), (7, 28499220), (9, 22166060), (10, 19949454), (12, 16624545), (14, 14249610), (15, 13299636), (18, 11083030), (20, 9974727), (21, 9499740), (28, 7124805), (30, 6649818), (35, 5699844), (36, 5541515), (42, 4749870), (45, 4433212), (60, 3324909), (63, 3166580), (70, 2849922), (84, 2374935), (90, 2216606), (105, 1899948), (126, 1583290), (140, 1424961), (180, 1108303), (210, 949974), (252, 791645), (315, 633316), (420, 474987), (630, 316658), (1260, 158329)]