199947638

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1\times {\mathrm{419}}^1$

素因数の和:740

約数の個数: 32

約数和(自身を含む): 332640000

約数和(自身を除く): 132692362

約数列:

[1, 2, 11, 22, 109, 199, 218, 398, 419, 838, 1199, 2189, 2398, 4378, 4609, 9218, 21691, 43382, 45671, 83381, 91342, 166762, 238601, 477202, 502381, 917191, 1004762, 1834382, 9088529, 18177058, 99973819, 199947638]

約数ペア:

[(1, 199947638), (2, 99973819), (11, 18177058), (22, 9088529), (109, 1834382), (199, 1004762), (218, 917191), (398, 502381), (419, 477202), (838, 238601), (1199, 166762), (2189, 91342), (2398, 83381), (4378, 45671), (4609, 43382), (9218, 21691)]