202142680

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{653}}^1$

素因数の和:844

約数の個数: 64

約数和(自身を含む): 466171200

約数和(自身を除く): 264028520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 109, 142, 218, 284, 355, 436, 545, 568, 653, 710, 872, 1090, 1306, 1420, 2180, 2612, 2840, 3265, 4360, 5224, 6530, 7739, 13060, 15478, 26120, 30956, 38695, 46363, 61912, 71177, 77390, 92726, 142354, 154780, 185452, 231815, 284708, 309560, 355885, 370904, 463630, 569416, 711770, 927260, 1423540, 1854520, 2847080, 5053567, 10107134, 20214268, 25267835, 40428536, 50535670, 101071340, 202142680]

約数ペア:

[(1, 202142680), (2, 101071340), (4, 50535670), (5, 40428536), (8, 25267835), (10, 20214268), (20, 10107134), (40, 5053567), (71, 2847080), (109, 1854520), (142, 1423540), (218, 927260), (284, 711770), (355, 569416), (436, 463630), (545, 370904), (568, 355885), (653, 309560), (710, 284708), (872, 231815), (1090, 185452), (1306, 154780), (1420, 142354), (2180, 92726), (2612, 77390), (2840, 71177), (3265, 61912), (4360, 46363), (5224, 38695), (6530, 30956), (7739, 26120), (13060, 15478)]