1217366980

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{19391}}^1$

素因数の和:19516

約数の個数: 48

約数和(自身を含む): 2651894784

約数和(自身を除く): 1434527804

約数列:

[1, 2, 4, 5, 10, 20, 43, 73, 86, 146, 172, 215, 292, 365, 430, 730, 860, 1460, 3139, 6278, 12556, 15695, 19391, 31390, 38782, 62780, 77564, 96955, 193910, 387820, 833813, 1415543, 1667626, 2831086, 3335252, 4169065, 5662172, 7077715, 8338130, 14155430, 16676260, 28310860, 60868349, 121736698, 243473396, 304341745, 608683490, 1217366980]

約数ペア:

[(1, 1217366980), (2, 608683490), (4, 304341745), (5, 243473396), (10, 121736698), (20, 60868349), (43, 28310860), (73, 16676260), (86, 14155430), (146, 8338130), (172, 7077715), (215, 5662172), (292, 4169065), (365, 3335252), (430, 2831086), (730, 1667626), (860, 1415543), (1460, 833813), (3139, 387820), (6278, 193910), (12556, 96955), (15695, 77564), (19391, 62780), (31390, 38782)]