690625255

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{457}}^1\times {\mathrm{773}}^1$

素因数の和:1275

約数の個数: 32

約数和(自身を含む): 918843264

約数和(自身を除く): 228218009

約数列:

[1, 5, 17, 23, 85, 115, 391, 457, 773, 1955, 2285, 3865, 7769, 10511, 13141, 17779, 38845, 52555, 65705, 88895, 178687, 302243, 353261, 893435, 1511215, 1766305, 6005437, 8125003, 30027185, 40625015, 138125051, 690625255]

約数ペア:

[(1, 690625255), (5, 138125051), (17, 40625015), (23, 30027185), (85, 8125003), (115, 6005437), (391, 1766305), (457, 1511215), (773, 893435), (1955, 353261), (2285, 302243), (3865, 178687), (7769, 88895), (10511, 65705), (13141, 52555), (17779, 38845)]