65639325

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{293}}^1$

素因数の和:438

約数の個数: 48

約数和(自身を含む): 113742720

約数和(自身を除く): 48103395

約数列:

[1, 3, 5, 15, 25, 29, 75, 87, 103, 145, 293, 309, 435, 515, 725, 879, 1465, 1545, 2175, 2575, 2987, 4395, 7325, 7725, 8497, 8961, 14935, 21975, 25491, 30179, 42485, 44805, 74675, 90537, 127455, 150895, 212425, 224025, 452685, 637275, 754475, 875191, 2263425, 2625573, 4375955, 13127865, 21879775, 65639325]

約数ペア:

[(1, 65639325), (3, 21879775), (5, 13127865), (15, 4375955), (25, 2625573), (29, 2263425), (75, 875191), (87, 754475), (103, 637275), (145, 452685), (293, 224025), (309, 212425), (435, 150895), (515, 127455), (725, 90537), (879, 74675), (1465, 44805), (1545, 42485), (2175, 30179), (2575, 25491), (2987, 21975), (4395, 14935), (7325, 8961), (7725, 8497)]