205122220

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{251}}^1\times {\mathrm{1409}}^1$

素因数の和:1698

約数の個数: 48

約数和(自身を含む): 447703200

約数和(自身を除く): 242580980

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 251, 290, 502, 580, 1004, 1255, 1409, 2510, 2818, 5020, 5636, 7045, 7279, 14090, 14558, 28180, 29116, 36395, 40861, 72790, 81722, 145580, 163444, 204305, 353659, 408610, 707318, 817220, 1414636, 1768295, 3536590, 7073180, 10256111, 20512222, 41024444, 51280555, 102561110, 205122220]

約数ペア:

[(1, 205122220), (2, 102561110), (4, 51280555), (5, 41024444), (10, 20512222), (20, 10256111), (29, 7073180), (58, 3536590), (116, 1768295), (145, 1414636), (251, 817220), (290, 707318), (502, 408610), (580, 353659), (1004, 204305), (1255, 163444), (1409, 145580), (2510, 81722), (2818, 72790), (5020, 40861), (5636, 36395), (7045, 29116), (7279, 28180), (14090, 14558)]