9987280

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{983}}^1$

素因数の和:1123

約数の個数: 40

約数和(自身を含む): 23427072

約数和(自身を除く): 13439792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 983, 1016, 1270, 1966, 2032, 2540, 3932, 4915, 5080, 7864, 9830, 10160, 15728, 19660, 39320, 78640, 124841, 249682, 499364, 624205, 998728, 1248410, 1997456, 2496820, 4993640, 9987280]

約数ペア:

[(1, 9987280), (2, 4993640), (4, 2496820), (5, 1997456), (8, 1248410), (10, 998728), (16, 624205), (20, 499364), (40, 249682), (80, 124841), (127, 78640), (254, 39320), (508, 19660), (635, 15728), (983, 10160), (1016, 9830), (1270, 7864), (1966, 5080), (2032, 4915), (2540, 3932)]