278301218

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{26693}}^1$

素因数の和:27109

約数の個数: 16

約数和(自身を含む): 450701496

約数和(自身を除く): 172400278

約数列:

[1, 2, 13, 26, 401, 802, 5213, 10426, 26693, 53386, 347009, 694018, 10703893, 21407786, 139150609, 278301218]

約数ペア:

[(1, 278301218), (2, 139150609), (13, 21407786), (26, 10703893), (401, 694018), (802, 347009), (5213, 53386), (10426, 26693)]