204428278

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1\times {\mathrm{571}}^1$

素因数の和:820

約数の個数: 32

約数和(自身を含む): 329801472

約数和(自身を除く): 125373194

約数列:

[1, 2, 23, 43, 46, 86, 181, 362, 571, 989, 1142, 1978, 4163, 7783, 8326, 13133, 15566, 24553, 26266, 49106, 103351, 179009, 206702, 358018, 564719, 1129438, 2377073, 4444093, 4754146, 8888186, 102214139, 204428278]

約数ペア:

[(1, 204428278), (2, 102214139), (23, 8888186), (43, 4754146), (46, 4444093), (86, 2377073), (181, 1129438), (362, 564719), (571, 358018), (989, 206702), (1142, 179009), (1978, 103351), (4163, 49106), (7783, 26266), (8326, 24553), (13133, 15566)]