20005928500

素因数分解:

$2^2\times 5^3\times {\mathrm{101}}^1\times {\mathrm{396157}}^1$

素因数の和:396277

約数の個数: 48

約数和(自身を含む): 44125662672

約数和(自身を除く): 24119734172

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 101, 125, 202, 250, 404, 500, 505, 1010, 2020, 2525, 5050, 10100, 12625, 25250, 50500, 396157, 792314, 1584628, 1980785, 3961570, 7923140, 9903925, 19807850, 39615700, 40011857, 49519625, 80023714, 99039250, 160047428, 198078500, 200059285, 400118570, 800237140, 1000296425, 2000592850, 4001185700, 5001482125, 10002964250, 20005928500]

約数ペア:

[(1, 20005928500), (2, 10002964250), (4, 5001482125), (5, 4001185700), (10, 2000592850), (20, 1000296425), (25, 800237140), (50, 400118570), (100, 200059285), (101, 198078500), (125, 160047428), (202, 99039250), (250, 80023714), (404, 49519625), (500, 40011857), (505, 39615700), (1010, 19807850), (2020, 9903925), (2525, 7923140), (5050, 3961570), (10100, 1980785), (12625, 1584628), (25250, 792314), (50500, 396157)]