19818500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{3049}}^1$

素因数の和:3081

約数の個数: 48

約数和(自身を含む): 46628400

約数和(自身を除く): 26809900

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 325, 500, 650, 1300, 1625, 3049, 3250, 6098, 6500, 12196, 15245, 30490, 39637, 60980, 76225, 79274, 152450, 158548, 198185, 304900, 381125, 396370, 762250, 792740, 990925, 1524500, 1981850, 3963700, 4954625, 9909250, 19818500]

約数ペア:

[(1, 19818500), (2, 9909250), (4, 4954625), (5, 3963700), (10, 1981850), (13, 1524500), (20, 990925), (25, 792740), (26, 762250), (50, 396370), (52, 381125), (65, 304900), (100, 198185), (125, 158548), (130, 152450), (250, 79274), (260, 76225), (325, 60980), (500, 39637), (650, 30490), (1300, 15245), (1625, 12196), (3049, 6500), (3250, 6098)]