20654792

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{619}}^1$

素因数の和:765

約数の個数: 32

約数和(自身を含む): 40101600

約数和(自身を除く): 19446808

約数列:

[1, 2, 4, 8, 43, 86, 97, 172, 194, 344, 388, 619, 776, 1238, 2476, 4171, 4952, 8342, 16684, 26617, 33368, 53234, 60043, 106468, 120086, 212936, 240172, 480344, 2581849, 5163698, 10327396, 20654792]

約数ペア:

[(1, 20654792), (2, 10327396), (4, 5163698), (8, 2581849), (43, 480344), (86, 240172), (97, 212936), (172, 120086), (194, 106468), (344, 60043), (388, 53234), (619, 33368), (776, 26617), (1238, 16684), (2476, 8342), (4171, 4952)]