397615785

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1\times {\mathrm{211}}^1$

素因数の和:494

約数の個数: 64

約数和(自身を含む): 741464064

約数和(自身を除く): 343848279

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 131, 137, 211, 393, 411, 633, 655, 685, 917, 959, 1055, 1477, 1965, 2055, 2751, 2877, 3165, 4431, 4585, 4795, 7385, 13755, 14385, 17947, 22155, 27641, 28907, 53841, 82923, 86721, 89735, 125629, 138205, 144535, 193487, 202349, 269205, 376887, 414615, 433605, 580461, 607047, 628145, 967435, 1011745, 1884435, 2902305, 3035235, 3786817, 11360451, 18934085, 26507719, 56802255, 79523157, 132538595, 397615785]

約数ペア:

[(1, 397615785), (3, 132538595), (5, 79523157), (7, 56802255), (15, 26507719), (21, 18934085), (35, 11360451), (105, 3786817), (131, 3035235), (137, 2902305), (211, 1884435), (393, 1011745), (411, 967435), (633, 628145), (655, 607047), (685, 580461), (917, 433605), (959, 414615), (1055, 376887), (1477, 269205), (1965, 202349), (2055, 193487), (2751, 144535), (2877, 138205), (3165, 125629), (4431, 89735), (4585, 86721), (4795, 82923), (7385, 53841), (13755, 28907), (14385, 27641), (17947, 22155)]