778827320

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{283}}^1\times {\mathrm{643}}^1$

素因数の和:1044

約数の個数: 64

約数和(自身を含む): 1777749120

約数和(自身を除く): 998921800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 283, 428, 535, 566, 643, 856, 1070, 1132, 1286, 1415, 2140, 2264, 2572, 2830, 3215, 4280, 5144, 5660, 6430, 11320, 12860, 25720, 30281, 60562, 68801, 121124, 137602, 151405, 181969, 242248, 275204, 302810, 344005, 363938, 550408, 605620, 688010, 727876, 909845, 1211240, 1376020, 1455752, 1819690, 2752040, 3639380, 7278760, 19470683, 38941366, 77882732, 97353415, 155765464, 194706830, 389413660, 778827320]

約数ペア:

[(1, 778827320), (2, 389413660), (4, 194706830), (5, 155765464), (8, 97353415), (10, 77882732), (20, 38941366), (40, 19470683), (107, 7278760), (214, 3639380), (283, 2752040), (428, 1819690), (535, 1455752), (566, 1376020), (643, 1211240), (856, 909845), (1070, 727876), (1132, 688010), (1286, 605620), (1415, 550408), (2140, 363938), (2264, 344005), (2572, 302810), (2830, 275204), (3215, 242248), (4280, 181969), (5144, 151405), (5660, 137602), (6430, 121124), (11320, 68801), (12860, 60562), (25720, 30281)]