20512991500

素因数分解:

$2^2\times 5^3\times {\mathrm{6217}}^1\times {\mathrm{6599}}^1$

素因数の和:12835

約数の個数: 48

約数和(自身を含む): 44814369600

約数和(自身を除く): 24301378100

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 6217, 6599, 12434, 13198, 24868, 26396, 31085, 32995, 62170, 65990, 124340, 131980, 155425, 164975, 310850, 329950, 621700, 659900, 777125, 824875, 1554250, 1649750, 3108500, 3299500, 41025983, 82051966, 164103932, 205129915, 410259830, 820519660, 1025649575, 2051299150, 4102598300, 5128247875, 10256495750, 20512991500]

約数ペア:

[(1, 20512991500), (2, 10256495750), (4, 5128247875), (5, 4102598300), (10, 2051299150), (20, 1025649575), (25, 820519660), (50, 410259830), (100, 205129915), (125, 164103932), (250, 82051966), (500, 41025983), (6217, 3299500), (6599, 3108500), (12434, 1649750), (13198, 1554250), (24868, 824875), (26396, 777125), (31085, 659900), (32995, 621700), (62170, 329950), (65990, 310850), (124340, 164975), (131980, 155425)]