18120160

素因数分解:

$2^5\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1039}}^1$

素因数の和:1163

約数の個数: 48

約数和(自身を含む): 43243200

約数和(自身を除く): 25123040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 109, 160, 218, 436, 545, 872, 1039, 1090, 1744, 2078, 2180, 3488, 4156, 4360, 5195, 8312, 8720, 10390, 16624, 17440, 20780, 33248, 41560, 83120, 113251, 166240, 226502, 453004, 566255, 906008, 1132510, 1812016, 2265020, 3624032, 4530040, 9060080, 18120160]

約数ペア:

[(1, 18120160), (2, 9060080), (4, 4530040), (5, 3624032), (8, 2265020), (10, 1812016), (16, 1132510), (20, 906008), (32, 566255), (40, 453004), (80, 226502), (109, 166240), (160, 113251), (218, 83120), (436, 41560), (545, 33248), (872, 20780), (1039, 17440), (1090, 16624), (1744, 10390), (2078, 8720), (2180, 8312), (3488, 5195), (4156, 4360)]