20504408

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{2371}}^1$

素因数の和:2447

約数の個数: 32

約数和(自身を含む): 40988160

約数和(自身を除く): 20483752

約数列:

[1, 2, 4, 8, 23, 46, 47, 92, 94, 184, 188, 376, 1081, 2162, 2371, 4324, 4742, 8648, 9484, 18968, 54533, 109066, 111437, 218132, 222874, 436264, 445748, 891496, 2563051, 5126102, 10252204, 20504408]

約数ペア:

[(1, 20504408), (2, 10252204), (4, 5126102), (8, 2563051), (23, 891496), (46, 445748), (47, 436264), (92, 222874), (94, 218132), (184, 111437), (188, 109066), (376, 54533), (1081, 18968), (2162, 9484), (2371, 8648), (4324, 4742)]