201621560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{563}}^1\times {\mathrm{1279}}^1$

素因数の和:1860

約数の個数: 64

約数和(自身を含む): 519782400

約数和(自身を除く): 318160840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 563, 1126, 1279, 2252, 2558, 2815, 3941, 4504, 5116, 5630, 6395, 7882, 8953, 10232, 11260, 12790, 15764, 17906, 19705, 22520, 25580, 31528, 35812, 39410, 44765, 51160, 71624, 78820, 89530, 157640, 179060, 358120, 720077, 1440154, 2880308, 3600385, 5040539, 5760616, 7200770, 10081078, 14401540, 20162156, 25202695, 28803080, 40324312, 50405390, 100810780, 201621560]

約数ペア:

[(1, 201621560), (2, 100810780), (4, 50405390), (5, 40324312), (7, 28803080), (8, 25202695), (10, 20162156), (14, 14401540), (20, 10081078), (28, 7200770), (35, 5760616), (40, 5040539), (56, 3600385), (70, 2880308), (140, 1440154), (280, 720077), (563, 358120), (1126, 179060), (1279, 157640), (2252, 89530), (2558, 78820), (2815, 71624), (3941, 51160), (4504, 44765), (5116, 39410), (5630, 35812), (6395, 31528), (7882, 25580), (8953, 22520), (10232, 19705), (11260, 17906), (12790, 15764)]