77781540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{821}}^1\times {\mathrm{1579}}^1$

素因数の和:2412

約数の個数: 48

約数和(自身を含む): 218191680

約数和(自身を除く): 140410140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 821, 1579, 1642, 2463, 3158, 3284, 4105, 4737, 4926, 6316, 7895, 8210, 9474, 9852, 12315, 15790, 16420, 18948, 23685, 24630, 31580, 47370, 49260, 94740, 1296359, 2592718, 3889077, 5185436, 6481795, 7778154, 12963590, 15556308, 19445385, 25927180, 38890770, 77781540]

約数ペア:

[(1, 77781540), (2, 38890770), (3, 25927180), (4, 19445385), (5, 15556308), (6, 12963590), (10, 7778154), (12, 6481795), (15, 5185436), (20, 3889077), (30, 2592718), (60, 1296359), (821, 94740), (1579, 49260), (1642, 47370), (2463, 31580), (3158, 24630), (3284, 23685), (4105, 18948), (4737, 16420), (4926, 15790), (6316, 12315), (7895, 9852), (8210, 9474)]