24640180

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{151}}^1\times {\mathrm{199}}^1$

素因数の和:400

約数の個数: 48

約数和(自身を含む): 53625600

約数和(自身を除く): 28985420

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 151, 164, 199, 205, 302, 398, 410, 604, 755, 796, 820, 995, 1510, 1990, 3020, 3980, 6191, 8159, 12382, 16318, 24764, 30049, 30955, 32636, 40795, 60098, 61910, 81590, 120196, 123820, 150245, 163180, 300490, 600980, 1232009, 2464018, 4928036, 6160045, 12320090, 24640180]

約数ペア:

[(1, 24640180), (2, 12320090), (4, 6160045), (5, 4928036), (10, 2464018), (20, 1232009), (41, 600980), (82, 300490), (151, 163180), (164, 150245), (199, 123820), (205, 120196), (302, 81590), (398, 61910), (410, 60098), (604, 40795), (755, 32636), (796, 30955), (820, 30049), (995, 24764), (1510, 16318), (1990, 12382), (3020, 8159), (3980, 6191)]