13206875

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1$

素因数の和:161

約数の個数: 40

約数和(自身を含む): 19231344

約数和(自身を除く): 6024469

約数列:

[1, 5, 11, 17, 25, 55, 85, 113, 125, 187, 275, 425, 565, 625, 935, 1243, 1375, 1921, 2125, 2825, 4675, 6215, 6875, 9605, 10625, 14125, 21131, 23375, 31075, 48025, 70625, 105655, 116875, 155375, 240125, 528275, 776875, 1200625, 2641375, 13206875]

約数ペア:

[(1, 13206875), (5, 2641375), (11, 1200625), (17, 776875), (25, 528275), (55, 240125), (85, 155375), (113, 116875), (125, 105655), (187, 70625), (275, 48025), (425, 31075), (565, 23375), (625, 21131), (935, 14125), (1243, 10625), (1375, 9605), (1921, 6875), (2125, 6215), (2825, 4675)]