399981396

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{6481}}^1$

素因数の和:6664

約数の個数: 48

約数和(自身を含む): 965558720

約数和(自身を除く): 565577324

約数列:

[1, 2, 3, 4, 6, 12, 37, 74, 111, 139, 148, 222, 278, 417, 444, 556, 834, 1668, 5143, 6481, 10286, 12962, 15429, 19443, 20572, 25924, 30858, 38886, 61716, 77772, 239797, 479594, 719391, 900859, 959188, 1438782, 1801718, 2702577, 2877564, 3603436, 5405154, 10810308, 33331783, 66663566, 99995349, 133327132, 199990698, 399981396]

約数ペア:

[(1, 399981396), (2, 199990698), (3, 133327132), (4, 99995349), (6, 66663566), (12, 33331783), (37, 10810308), (74, 5405154), (111, 3603436), (139, 2877564), (148, 2702577), (222, 1801718), (278, 1438782), (417, 959188), (444, 900859), (556, 719391), (834, 479594), (1668, 239797), (5143, 77772), (6481, 61716), (10286, 38886), (12962, 30858), (15429, 25924), (19443, 20572)]