78817580

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{277}}^1\times {\mathrm{347}}^1$

素因数の和:674

約数の個数: 48

約数和(自身を含む): 170656416

約数和(自身を除く): 91838836

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 277, 347, 410, 554, 694, 820, 1108, 1385, 1388, 1735, 2770, 3470, 5540, 6940, 11357, 14227, 22714, 28454, 45428, 56785, 56908, 71135, 96119, 113570, 142270, 192238, 227140, 284540, 384476, 480595, 961190, 1922380, 3940879, 7881758, 15763516, 19704395, 39408790, 78817580]

約数ペア:

[(1, 78817580), (2, 39408790), (4, 19704395), (5, 15763516), (10, 7881758), (20, 3940879), (41, 1922380), (82, 961190), (164, 480595), (205, 384476), (277, 284540), (347, 227140), (410, 192238), (554, 142270), (694, 113570), (820, 96119), (1108, 71135), (1385, 56908), (1388, 56785), (1735, 45428), (2770, 28454), (3470, 22714), (5540, 14227), (6940, 11357)]