20054500

素因数分解:

$2^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{2111}}^1$

素因数の和:2149

約数の個数: 48

約数和(自身を含む): 46126080

約数和(自身を除く): 26071580

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 125, 190, 250, 380, 475, 500, 950, 1900, 2111, 2375, 4222, 4750, 8444, 9500, 10555, 21110, 40109, 42220, 52775, 80218, 105550, 160436, 200545, 211100, 263875, 401090, 527750, 802180, 1002725, 1055500, 2005450, 4010900, 5013625, 10027250, 20054500]

約数ペア:

[(1, 20054500), (2, 10027250), (4, 5013625), (5, 4010900), (10, 2005450), (19, 1055500), (20, 1002725), (25, 802180), (38, 527750), (50, 401090), (76, 263875), (95, 211100), (100, 200545), (125, 160436), (190, 105550), (250, 80218), (380, 52775), (475, 42220), (500, 40109), (950, 21110), (1900, 10555), (2111, 9500), (2375, 8444), (4222, 4750)]