40287880

素因数分解:

$2^3\times 5^1\times {\mathrm{283}}^1\times {\mathrm{3559}}^1$

素因数の和:3853

約数の個数: 32

約数和(自身を含む): 90993600

約数和(自身を除く): 50705720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 283, 566, 1132, 1415, 2264, 2830, 3559, 5660, 7118, 11320, 14236, 17795, 28472, 35590, 71180, 142360, 1007197, 2014394, 4028788, 5035985, 8057576, 10071970, 20143940, 40287880]

約数ペア:

[(1, 40287880), (2, 20143940), (4, 10071970), (5, 8057576), (8, 5035985), (10, 4028788), (20, 2014394), (40, 1007197), (283, 142360), (566, 71180), (1132, 35590), (1415, 28472), (2264, 17795), (2830, 14236), (3559, 11320), (5660, 7118)]