28805840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{51439}}^1$

素因数の和:51459

約数の個数: 40

約数和(自身を含む): 76542720

約数和(自身を除く): 47736880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 51439, 102878, 205756, 257195, 360073, 411512, 514390, 720146, 823024, 1028780, 1440292, 1800365, 2057560, 2880584, 3600730, 4115120, 5761168, 7201460, 14402920, 28805840]

約数ペア:

[(1, 28805840), (2, 14402920), (4, 7201460), (5, 5761168), (7, 4115120), (8, 3600730), (10, 2880584), (14, 2057560), (16, 1800365), (20, 1440292), (28, 1028780), (35, 823024), (40, 720146), (56, 514390), (70, 411512), (80, 360073), (112, 257195), (140, 205756), (280, 102878), (560, 51439)]