199399990

素因数分解:

$2^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{199}}^1\times {\mathrm{1033}}^1$

素因数の和:1336

約数の個数: 32

約数和(自身を含む): 364795200

約数和(自身を除く): 165395210

約数列:

[1, 2, 5, 10, 97, 194, 199, 398, 485, 970, 995, 1033, 1990, 2066, 5165, 10330, 19303, 38606, 96515, 100201, 193030, 200402, 205567, 411134, 501005, 1002010, 1027835, 2055670, 19939999, 39879998, 99699995, 199399990]

約数ペア:

[(1, 199399990), (2, 99699995), (5, 39879998), (10, 19939999), (97, 2055670), (194, 1027835), (199, 1002010), (398, 501005), (485, 411134), (970, 205567), (995, 200402), (1033, 193030), (1990, 100201), (2066, 96515), (5165, 38606), (10330, 19303)]