20885750

素因数分解:

$2^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{4397}}^1$

素因数の和:4433

約数の個数: 32

約数和(自身を含む): 41165280

約数和(自身を除く): 20279530

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 125, 190, 250, 475, 950, 2375, 4397, 4750, 8794, 21985, 43970, 83543, 109925, 167086, 219850, 417715, 549625, 835430, 1099250, 2088575, 4177150, 10442875, 20885750]

約数ペア:

[(1, 20885750), (2, 10442875), (5, 4177150), (10, 2088575), (19, 1099250), (25, 835430), (38, 549625), (50, 417715), (95, 219850), (125, 167086), (190, 109925), (250, 83543), (475, 43970), (950, 21985), (2375, 8794), (4397, 4750)]