537291220

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{151}}^1\times {\mathrm{1999}}^1$

素因数の和:2248

約数の個数: 48

約数和(自身を含む): 1149120000

約数和(自身を除く): 611828780

約数列:

[1, 2, 4, 5, 10, 20, 89, 151, 178, 302, 356, 445, 604, 755, 890, 1510, 1780, 1999, 3020, 3998, 7996, 9995, 13439, 19990, 26878, 39980, 53756, 67195, 134390, 177911, 268780, 301849, 355822, 603698, 711644, 889555, 1207396, 1509245, 1779110, 3018490, 3558220, 6036980, 26864561, 53729122, 107458244, 134322805, 268645610, 537291220]

約数ペア:

[(1, 537291220), (2, 268645610), (4, 134322805), (5, 107458244), (10, 53729122), (20, 26864561), (89, 6036980), (151, 3558220), (178, 3018490), (302, 1779110), (356, 1509245), (445, 1207396), (604, 889555), (755, 711644), (890, 603698), (1510, 355822), (1780, 301849), (1999, 268780), (3020, 177911), (3998, 134390), (7996, 67195), (9995, 53756), (13439, 39980), (19990, 26878)]