19720160

素因数分解:

$2^5\times 5^1\times {\mathrm{59}}^1\times {\mathrm{2089}}^1$

素因数の和:2163

約数の個数: 48

約数和(自身を含む): 47401200

約数和(自身を除く): 27681040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 59, 80, 118, 160, 236, 295, 472, 590, 944, 1180, 1888, 2089, 2360, 4178, 4720, 8356, 9440, 10445, 16712, 20890, 33424, 41780, 66848, 83560, 123251, 167120, 246502, 334240, 493004, 616255, 986008, 1232510, 1972016, 2465020, 3944032, 4930040, 9860080, 19720160]

約数ペア:

[(1, 19720160), (2, 9860080), (4, 4930040), (5, 3944032), (8, 2465020), (10, 1972016), (16, 1232510), (20, 986008), (32, 616255), (40, 493004), (59, 334240), (80, 246502), (118, 167120), (160, 123251), (236, 83560), (295, 66848), (472, 41780), (590, 33424), (944, 20890), (1180, 16712), (1888, 10445), (2089, 9440), (2360, 8356), (4178, 4720)]