256760940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1\times {\mathrm{281}}^1$

素因数の和:547

約数の個数: 96

約数和(自身を含む): 733569984

約数和(自身を除く): 476809044

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 97, 157, 194, 281, 291, 314, 388, 471, 485, 562, 582, 628, 785, 843, 942, 970, 1124, 1164, 1405, 1455, 1570, 1686, 1884, 1940, 2355, 2810, 2910, 3140, 3372, 4215, 4710, 5620, 5820, 8430, 9420, 15229, 16860, 27257, 30458, 44117, 45687, 54514, 60916, 76145, 81771, 88234, 91374, 109028, 132351, 136285, 152290, 163542, 176468, 182748, 220585, 228435, 264702, 272570, 304580, 327084, 408855, 441170, 456870, 529404, 545140, 661755, 817710, 882340, 913740, 1323510, 1635420, 2647020, 4279349, 8558698, 12838047, 17117396, 21396745, 25676094, 42793490, 51352188, 64190235, 85586980, 128380470, 256760940]

約数ペア:

[(1, 256760940), (2, 128380470), (3, 85586980), (4, 64190235), (5, 51352188), (6, 42793490), (10, 25676094), (12, 21396745), (15, 17117396), (20, 12838047), (30, 8558698), (60, 4279349), (97, 2647020), (157, 1635420), (194, 1323510), (281, 913740), (291, 882340), (314, 817710), (388, 661755), (471, 545140), (485, 529404), (562, 456870), (582, 441170), (628, 408855), (785, 327084), (843, 304580), (942, 272570), (970, 264702), (1124, 228435), (1164, 220585), (1405, 182748), (1455, 176468), (1570, 163542), (1686, 152290), (1884, 136285), (1940, 132351), (2355, 109028), (2810, 91374), (2910, 88234), (3140, 81771), (3372, 76145), (4215, 60916), (4710, 54514), (5620, 45687), (5820, 44117), (8430, 30458), (9420, 27257), (15229, 16860)]