18018000900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{20020001}}^1$

素因数の和:20020021

約数の個数: 54

約数和(自身を含む): 56476425642

約数和(自身を除く): 38458424742

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 150, 180, 225, 300, 450, 900, 20020001, 40040002, 60060003, 80080004, 100100005, 120120006, 180180009, 200200010, 240240012, 300300015, 360360018, 400400020, 500500025, 600600030, 720720036, 900900045, 1001000050, 1201200060, 1501500075, 1801800090, 2002000100, 3003000150, 3603600180, 4504500225, 6006000300, 9009000450, 18018000900]

約数ペア:

[(1, 18018000900), (2, 9009000450), (3, 6006000300), (4, 4504500225), (5, 3603600180), (6, 3003000150), (9, 2002000100), (10, 1801800090), (12, 1501500075), (15, 1201200060), (18, 1001000050), (20, 900900045), (25, 720720036), (30, 600600030), (36, 500500025), (45, 400400020), (50, 360360018), (60, 300300015), (75, 240240012), (90, 200200010), (100, 180180009), (150, 120120006), (180, 100100005), (225, 80080004), (300, 60060003), (450, 40040002), (900, 20020001)]