161888188

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{2357}}^1$

素因数の和:2602

約数の個数: 48

約数和(自身を含む): 354945024

約数和(自身を除く): 193056836

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 223, 308, 446, 892, 1561, 2357, 2453, 3122, 4714, 4906, 6244, 9428, 9812, 16499, 17171, 25927, 32998, 34342, 51854, 65996, 68684, 103708, 181489, 362978, 525611, 725956, 1051222, 2102444, 3679277, 5781721, 7358554, 11563442, 14717108, 23126884, 40472047, 80944094, 161888188]

約数ペア:

[(1, 161888188), (2, 80944094), (4, 40472047), (7, 23126884), (11, 14717108), (14, 11563442), (22, 7358554), (28, 5781721), (44, 3679277), (77, 2102444), (154, 1051222), (223, 725956), (308, 525611), (446, 362978), (892, 181489), (1561, 103708), (2357, 68684), (2453, 65996), (3122, 51854), (4714, 34342), (4906, 32998), (6244, 25927), (9428, 17171), (9812, 16499)]