399422045

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{263}}^1\times {\mathrm{521}}^1$

素因数の和:853

約数の個数: 32

約数和(自身を含む): 535797504

約数和(自身を除く): 136375459

約数列:

[1, 5, 11, 53, 55, 263, 265, 521, 583, 1315, 2605, 2893, 2915, 5731, 13939, 14465, 27613, 28655, 69695, 137023, 138065, 153329, 303743, 685115, 766645, 1507253, 1518715, 7262219, 7536265, 36311095, 79884409, 399422045]

約数ペア:

[(1, 399422045), (5, 79884409), (11, 36311095), (53, 7536265), (55, 7262219), (263, 1518715), (265, 1507253), (521, 766645), (583, 685115), (1315, 303743), (2605, 153329), (2893, 138065), (2915, 137023), (5731, 69695), (13939, 28655), (14465, 27613)]