311506960

素因数分解:

$2^4\times 5^1\times {\mathrm{107}}^1\times {\mathrm{151}}^1\times {\mathrm{241}}^1$

素因数の和:512

約数の個数: 80

約数和(自身を含む): 738916992

約数和(自身を除く): 427410032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 107, 151, 214, 241, 302, 428, 482, 535, 604, 755, 856, 964, 1070, 1205, 1208, 1510, 1712, 1928, 2140, 2410, 2416, 3020, 3856, 4280, 4820, 6040, 8560, 9640, 12080, 16157, 19280, 25787, 32314, 36391, 51574, 64628, 72782, 80785, 103148, 128935, 129256, 145564, 161570, 181955, 206296, 257870, 258512, 291128, 323140, 363910, 412592, 515740, 582256, 646280, 727820, 1031480, 1292560, 1455640, 2062960, 2911280, 3893837, 7787674, 15575348, 19469185, 31150696, 38938370, 62301392, 77876740, 155753480, 311506960]

約数ペア:

[(1, 311506960), (2, 155753480), (4, 77876740), (5, 62301392), (8, 38938370), (10, 31150696), (16, 19469185), (20, 15575348), (40, 7787674), (80, 3893837), (107, 2911280), (151, 2062960), (214, 1455640), (241, 1292560), (302, 1031480), (428, 727820), (482, 646280), (535, 582256), (604, 515740), (755, 412592), (856, 363910), (964, 323140), (1070, 291128), (1205, 258512), (1208, 257870), (1510, 206296), (1712, 181955), (1928, 161570), (2140, 145564), (2410, 129256), (2416, 128935), (3020, 103148), (3856, 80785), (4280, 72782), (4820, 64628), (6040, 51574), (8560, 36391), (9640, 32314), (12080, 25787), (16157, 19280)]