20400180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{3301}}^1$

素因数の和:3416

約数の個数: 48

約数和(自身を含む): 57692544

約数和(自身を除く): 37292364

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 103, 206, 309, 412, 515, 618, 1030, 1236, 1545, 2060, 3090, 3301, 6180, 6602, 9903, 13204, 16505, 19806, 33010, 39612, 49515, 66020, 99030, 198060, 340003, 680006, 1020009, 1360012, 1700015, 2040018, 3400030, 4080036, 5100045, 6800060, 10200090, 20400180]

約数ペア:

[(1, 20400180), (2, 10200090), (3, 6800060), (4, 5100045), (5, 4080036), (6, 3400030), (10, 2040018), (12, 1700015), (15, 1360012), (20, 1020009), (30, 680006), (60, 340003), (103, 198060), (206, 99030), (309, 66020), (412, 49515), (515, 39612), (618, 33010), (1030, 19806), (1236, 16505), (1545, 13204), (2060, 9903), (3090, 6602), (3301, 6180)]