51564500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{7933}}^1$

素因数の和:7965

約数の個数: 48

約数和(自身を含む): 121294992

約数和(自身を除く): 69730492

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, 3250, 6500, 7933, 15866, 31732, 39665, 79330, 103129, 158660, 198325, 206258, 396650, 412516, 515645, 793300, 991625, 1031290, 1983250, 2062580, 2578225, 3966500, 5156450, 10312900, 12891125, 25782250, 51564500]

約数ペア:

[(1, 51564500), (2, 25782250), (4, 12891125), (5, 10312900), (10, 5156450), (13, 3966500), (20, 2578225), (25, 2062580), (26, 1983250), (50, 1031290), (52, 991625), (65, 793300), (100, 515645), (125, 412516), (130, 396650), (250, 206258), (260, 198325), (325, 158660), (500, 103129), (650, 79330), (1300, 39665), (1625, 31732), (3250, 15866), (6500, 7933)]