28625480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{55049}}^1$

素因数の和:55073

約数の個数: 32

約数和(自身を含む): 69363000

約数和(自身を除く): 40737520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 55049, 110098, 220196, 275245, 440392, 550490, 715637, 1100980, 1431274, 2201960, 2862548, 3578185, 5725096, 7156370, 14312740, 28625480]

約数ペア:

[(1, 28625480), (2, 14312740), (4, 7156370), (5, 5725096), (8, 3578185), (10, 2862548), (13, 2201960), (20, 1431274), (26, 1100980), (40, 715637), (52, 550490), (65, 440392), (104, 275245), (130, 220196), (260, 110098), (520, 55049)]