640865415

素因数分解:

$3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{480049}}^1$

素因数の和:480146

約数の個数: 16

約数和(自身を含む): 1036908000

約数和(自身を除く): 396042585

約数列:

[1, 3, 5, 15, 89, 267, 445, 1335, 480049, 1440147, 2400245, 7200735, 42724361, 128173083, 213621805, 640865415]

約数ペア:

[(1, 640865415), (3, 213621805), (5, 128173083), (15, 42724361), (89, 7200735), (267, 2400245), (445, 1440147), (1335, 480049)]