16807540

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{199}}^1$

素因数の和:352

約数の個数: 48

約数和(自身を含む): 36691200

約数和(自身を除く): 19883660

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 103, 164, 199, 205, 206, 398, 410, 412, 515, 796, 820, 995, 1030, 1990, 2060, 3980, 4223, 8159, 8446, 16318, 16892, 20497, 21115, 32636, 40795, 40994, 42230, 81590, 81988, 84460, 102485, 163180, 204970, 409940, 840377, 1680754, 3361508, 4201885, 8403770, 16807540]

約数ペア:

[(1, 16807540), (2, 8403770), (4, 4201885), (5, 3361508), (10, 1680754), (20, 840377), (41, 409940), (82, 204970), (103, 163180), (164, 102485), (199, 84460), (205, 81988), (206, 81590), (398, 42230), (410, 40994), (412, 40795), (515, 32636), (796, 21115), (820, 20497), (995, 16892), (1030, 16318), (1990, 8446), (2060, 8159), (3980, 4223)]