187820180

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1\times {\mathrm{1151}}^1$

素因数の和:1400

約数の個数: 48

約数和(自身を含む): 406425600

約数和(自身を除く): 218605420

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 199, 205, 398, 410, 796, 820, 995, 1151, 1990, 2302, 3980, 4604, 5755, 8159, 11510, 16318, 23020, 32636, 40795, 47191, 81590, 94382, 163180, 188764, 229049, 235955, 458098, 471910, 916196, 943820, 1145245, 2290490, 4580980, 9391009, 18782018, 37564036, 46955045, 93910090, 187820180]

約数ペア:

[(1, 187820180), (2, 93910090), (4, 46955045), (5, 37564036), (10, 18782018), (20, 9391009), (41, 4580980), (82, 2290490), (164, 1145245), (199, 943820), (205, 916196), (398, 471910), (410, 458098), (796, 235955), (820, 229049), (995, 188764), (1151, 163180), (1990, 94382), (2302, 81590), (3980, 47191), (4604, 40795), (5755, 32636), (8159, 23020), (11510, 16318)]