20159672080

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{2311889}}^1$

素因数の和:2312011

約数の個数: 40

約数和(自身を含む): 47301269400

約数和(自身を除く): 27141597320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 8720, 2311889, 4623778, 9247556, 11559445, 18495112, 23118890, 36990224, 46237780, 92475560, 184951120, 251995901, 503991802, 1007983604, 1259979505, 2015967208, 2519959010, 4031934416, 5039918020, 10079836040, 20159672080]

約数ペア:

[(1, 20159672080), (2, 10079836040), (4, 5039918020), (5, 4031934416), (8, 2519959010), (10, 2015967208), (16, 1259979505), (20, 1007983604), (40, 503991802), (80, 251995901), (109, 184951120), (218, 92475560), (436, 46237780), (545, 36990224), (872, 23118890), (1090, 18495112), (1744, 11559445), (2180, 9247556), (4360, 4623778), (8720, 2311889)]