390320895

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{20441}}^1$

素因数の和:20535

約数の個数: 32

約数和(自身を含む): 667226880

約数和(自身を除く): 276905985

約数列:

[1, 3, 5, 15, 19, 57, 67, 95, 201, 285, 335, 1005, 1273, 3819, 6365, 19095, 20441, 61323, 102205, 306615, 388379, 1165137, 1369547, 1941895, 4108641, 5825685, 6847735, 20543205, 26021393, 78064179, 130106965, 390320895]

約数ペア:

[(1, 390320895), (3, 130106965), (5, 78064179), (15, 26021393), (19, 20543205), (57, 6847735), (67, 5825685), (95, 4108641), (201, 1941895), (285, 1369547), (335, 1165137), (1005, 388379), (1273, 306615), (3819, 102205), (6365, 61323), (19095, 20441)]