201659980

素因数分解:

$2^2\times 5^1\times {\mathrm{1451}}^1\times {\mathrm{6949}}^1$

素因数の和:8409

約数の個数: 24

約数和(自身を含む): 423838800

約数和(自身を除く): 222178820

約数列:

[1, 2, 4, 5, 10, 20, 1451, 2902, 5804, 6949, 7255, 13898, 14510, 27796, 29020, 34745, 69490, 138980, 10082999, 20165998, 40331996, 50414995, 100829990, 201659980]

約数ペア:

[(1, 201659980), (2, 100829990), (4, 50414995), (5, 40331996), (10, 20165998), (20, 10082999), (1451, 138980), (2902, 69490), (5804, 34745), (6949, 29020), (7255, 27796), (13898, 14510)]