80708000

素因数分解:

$2^5\times 5^3\times {\mathrm{20177}}^1$

素因数の和:20202

約数の個数: 48

約数和(自身を含む): 198309384

約数和(自身を除く): 117601384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 20177, 40354, 80708, 100885, 161416, 201770, 322832, 403540, 504425, 645664, 807080, 1008850, 1614160, 2017700, 2522125, 3228320, 4035400, 5044250, 8070800, 10088500, 16141600, 20177000, 40354000, 80708000]

約数ペア:

[(1, 80708000), (2, 40354000), (4, 20177000), (5, 16141600), (8, 10088500), (10, 8070800), (16, 5044250), (20, 4035400), (25, 3228320), (32, 2522125), (40, 2017700), (50, 1614160), (80, 1008850), (100, 807080), (125, 645664), (160, 504425), (200, 403540), (250, 322832), (400, 201770), (500, 161416), (800, 100885), (1000, 80708), (2000, 40354), (4000, 20177)]