8041640

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1583}}^1$

素因数の和:1721

約数の個数: 32

約数和(自身を含む): 18247680

約数和(自身を除く): 10206040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 1583, 2540, 3166, 5080, 6332, 7915, 12664, 15830, 31660, 63320, 201041, 402082, 804164, 1005205, 1608328, 2010410, 4020820, 8041640]

約数ペア:

[(1, 8041640), (2, 4020820), (4, 2010410), (5, 1608328), (8, 1005205), (10, 804164), (20, 402082), (40, 201041), (127, 63320), (254, 31660), (508, 15830), (635, 12664), (1016, 7915), (1270, 6332), (1583, 5080), (2540, 3166)]