998156920

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{317}}^1\times {\mathrm{353}}^1$

素因数の和:904

約数の個数: 64

約数和(自身を含む): 2269451520

約数和(自身を除く): 1271294600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 317, 353, 446, 634, 706, 892, 1115, 1268, 1412, 1585, 1765, 1784, 2230, 2536, 2824, 3170, 3530, 4460, 6340, 7060, 8920, 12680, 14120, 70691, 78719, 111901, 141382, 157438, 223802, 282764, 314876, 353455, 393595, 447604, 559505, 565528, 629752, 706910, 787190, 895208, 1119010, 1413820, 1574380, 2238020, 2827640, 3148760, 4476040, 24953923, 49907846, 99815692, 124769615, 199631384, 249539230, 499078460, 998156920]

約数ペア:

[(1, 998156920), (2, 499078460), (4, 249539230), (5, 199631384), (8, 124769615), (10, 99815692), (20, 49907846), (40, 24953923), (223, 4476040), (317, 3148760), (353, 2827640), (446, 2238020), (634, 1574380), (706, 1413820), (892, 1119010), (1115, 895208), (1268, 787190), (1412, 706910), (1585, 629752), (1765, 565528), (1784, 559505), (2230, 447604), (2536, 393595), (2824, 353455), (3170, 314876), (3530, 282764), (4460, 223802), (6340, 157438), (7060, 141382), (8920, 111901), (12680, 78719), (14120, 70691)]