19775840

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{17657}}^1$

素因数の和:17679

約数の個数: 48

約数和(自身を含む): 53397792

約数和(自身を除く): 33621952

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 17657, 35314, 70628, 88285, 123599, 141256, 176570, 247198, 282512, 353140, 494396, 565024, 617995, 706280, 988792, 1235990, 1412560, 1977584, 2471980, 2825120, 3955168, 4943960, 9887920, 19775840]

約数ペア:

[(1, 19775840), (2, 9887920), (4, 4943960), (5, 3955168), (7, 2825120), (8, 2471980), (10, 1977584), (14, 1412560), (16, 1235990), (20, 988792), (28, 706280), (32, 617995), (35, 565024), (40, 494396), (56, 353140), (70, 282512), (80, 247198), (112, 176570), (140, 141256), (160, 123599), (224, 88285), (280, 70628), (560, 35314), (1120, 17657)]