1998231080

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{251}}^1\times {\mathrm{6863}}^1$

素因数の和:7154

約数の個数: 64

約数和(自身を含む): 4670265600

約数和(自身を除く): 2672034520

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 251, 290, 502, 580, 1004, 1160, 1255, 2008, 2510, 5020, 6863, 7279, 10040, 13726, 14558, 27452, 29116, 34315, 36395, 54904, 58232, 68630, 72790, 137260, 145580, 199027, 274520, 291160, 398054, 796108, 995135, 1592216, 1722613, 1990270, 3445226, 3980540, 6890452, 7961080, 8613065, 13780904, 17226130, 34452260, 49955777, 68904520, 99911554, 199823108, 249778885, 399646216, 499557770, 999115540, 1998231080]

約数ペア:

[(1, 1998231080), (2, 999115540), (4, 499557770), (5, 399646216), (8, 249778885), (10, 199823108), (20, 99911554), (29, 68904520), (40, 49955777), (58, 34452260), (116, 17226130), (145, 13780904), (232, 8613065), (251, 7961080), (290, 6890452), (502, 3980540), (580, 3445226), (1004, 1990270), (1160, 1722613), (1255, 1592216), (2008, 995135), (2510, 796108), (5020, 398054), (6863, 291160), (7279, 274520), (10040, 199027), (13726, 145580), (14558, 137260), (27452, 72790), (29116, 68630), (34315, 58232), (36395, 54904)]