287780940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{37181}}^1$

素因数の和:37239

約数の個数: 72

約数和(自身を含む): 893260368

約数和(自身を除く): 605479428

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2580, 3870, 7740, 37181, 74362, 111543, 148724, 185905, 223086, 334629, 371810, 446172, 557715, 669258, 743620, 1115430, 1338516, 1598783, 1673145, 2230860, 3197566, 3346290, 4796349, 6395132, 6692580, 7993915, 9592698, 14389047, 15987830, 19185396, 23981745, 28778094, 31975660, 47963490, 57556188, 71945235, 95926980, 143890470, 287780940]

約数ペア:

[(1, 287780940), (2, 143890470), (3, 95926980), (4, 71945235), (5, 57556188), (6, 47963490), (9, 31975660), (10, 28778094), (12, 23981745), (15, 19185396), (18, 15987830), (20, 14389047), (30, 9592698), (36, 7993915), (43, 6692580), (45, 6395132), (60, 4796349), (86, 3346290), (90, 3197566), (129, 2230860), (172, 1673145), (180, 1598783), (215, 1338516), (258, 1115430), (387, 743620), (430, 669258), (516, 557715), (645, 446172), (774, 371810), (860, 334629), (1290, 223086), (1548, 185905), (1935, 148724), (2580, 111543), (3870, 74362), (7740, 37181)]