281149780

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{379}}^1\times {\mathrm{1279}}^1$

素因数の和:1696

約数の個数: 48

約数和(自身を含む): 612864000

約数和(自身を除く): 331714220

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 379, 580, 758, 1279, 1516, 1895, 2558, 3790, 5116, 6395, 7580, 10991, 12790, 21982, 25580, 37091, 43964, 54955, 74182, 109910, 148364, 185455, 219820, 370910, 484741, 741820, 969482, 1938964, 2423705, 4847410, 9694820, 14057489, 28114978, 56229956, 70287445, 140574890, 281149780]

約数ペア:

[(1, 281149780), (2, 140574890), (4, 70287445), (5, 56229956), (10, 28114978), (20, 14057489), (29, 9694820), (58, 4847410), (116, 2423705), (145, 1938964), (290, 969482), (379, 741820), (580, 484741), (758, 370910), (1279, 219820), (1516, 185455), (1895, 148364), (2558, 109910), (3790, 74182), (5116, 54955), (6395, 43964), (7580, 37091), (10991, 25580), (12790, 21982)]