81681540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{6841}}^1$

素因数の和:7052

約数の個数: 48

約数和(自身を含む): 229891200

約数和(自身を除く): 148209660

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 199, 398, 597, 796, 995, 1194, 1990, 2388, 2985, 3980, 5970, 6841, 11940, 13682, 20523, 27364, 34205, 41046, 68410, 82092, 102615, 136820, 205230, 410460, 1361359, 2722718, 4084077, 5445436, 6806795, 8168154, 13613590, 16336308, 20420385, 27227180, 40840770, 81681540]

約数ペア:

[(1, 81681540), (2, 40840770), (3, 27227180), (4, 20420385), (5, 16336308), (6, 13613590), (10, 8168154), (12, 6806795), (15, 5445436), (20, 4084077), (30, 2722718), (60, 1361359), (199, 410460), (398, 205230), (597, 136820), (796, 102615), (995, 82092), (1194, 68410), (1990, 41046), (2388, 34205), (2985, 27364), (3980, 20523), (5970, 13682), (6841, 11940)]