202100720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{132961}}^1$

素因数の和:132993

約数の個数: 40

約数和(自身を含む): 494618640

約数和(自身を除く): 292517920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 132961, 265922, 531844, 664805, 1063688, 1329610, 2127376, 2526259, 2659220, 5052518, 5318440, 10105036, 10636880, 12631295, 20210072, 25262590, 40420144, 50525180, 101050360, 202100720]

約数ペア:

[(1, 202100720), (2, 101050360), (4, 50525180), (5, 40420144), (8, 25262590), (10, 20210072), (16, 12631295), (19, 10636880), (20, 10105036), (38, 5318440), (40, 5052518), (76, 2659220), (80, 2526259), (95, 2127376), (152, 1329610), (190, 1063688), (304, 664805), (380, 531844), (760, 265922), (1520, 132961)]