7889767220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{991}}^1\times {\mathrm{12841}}^1$

素因数の和:13872

約数の個数: 48

約数和(自身を含む): 17121570816

約数和(自身を除く): 9231803596

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 991, 1982, 3964, 4955, 9910, 12841, 19820, 25682, 30721, 51364, 61442, 64205, 122884, 128410, 153605, 256820, 307210, 398071, 614420, 796142, 1592284, 1990355, 3980710, 7961420, 12725431, 25450862, 50901724, 63627155, 127254310, 254508620, 394488361, 788976722, 1577953444, 1972441805, 3944883610, 7889767220]

約数ペア:

[(1, 7889767220), (2, 3944883610), (4, 1972441805), (5, 1577953444), (10, 788976722), (20, 394488361), (31, 254508620), (62, 127254310), (124, 63627155), (155, 50901724), (310, 25450862), (620, 12725431), (991, 7961420), (1982, 3980710), (3964, 1990355), (4955, 1592284), (9910, 796142), (12841, 614420), (19820, 398071), (25682, 307210), (30721, 256820), (51364, 153605), (61442, 128410), (64205, 122884)]