28707280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{51263}}^1$

素因数の和:51283

約数の個数: 40

約数和(自身を含む): 76280832

約数和(自身を除く): 47573552

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 51263, 102526, 205052, 256315, 358841, 410104, 512630, 717682, 820208, 1025260, 1435364, 1794205, 2050520, 2870728, 3588410, 4101040, 5741456, 7176820, 14353640, 28707280]

約数ペア:

[(1, 28707280), (2, 14353640), (4, 7176820), (5, 5741456), (7, 4101040), (8, 3588410), (10, 2870728), (14, 2050520), (16, 1794205), (20, 1435364), (28, 1025260), (35, 820208), (40, 717682), (56, 512630), (70, 410104), (80, 358841), (112, 256315), (140, 205052), (280, 102526), (560, 51263)]