287087920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{512657}}^1$

素因数の和:512677

約数の個数: 40

約数和(自身を含む): 762835104

約数和(自身を除く): 475747184

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 512657, 1025314, 2050628, 2563285, 3588599, 4101256, 5126570, 7177198, 8202512, 10253140, 14354396, 17942995, 20506280, 28708792, 35885990, 41012560, 57417584, 71771980, 143543960, 287087920]

約数ペア:

[(1, 287087920), (2, 143543960), (4, 71771980), (5, 57417584), (7, 41012560), (8, 35885990), (10, 28708792), (14, 20506280), (16, 17942995), (20, 14354396), (28, 10253140), (35, 8202512), (40, 7177198), (56, 5126570), (70, 4101256), (80, 3588599), (112, 2563285), (140, 2050628), (280, 1025314), (560, 512657)]