2213245

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1$

素因数の和:276

約数の個数: 16

約数和(自身を含む): 2787840

約数和(自身を除く): 574595

約数列:

[1, 5, 31, 109, 131, 155, 545, 655, 3379, 4061, 14279, 16895, 20305, 71395, 442649, 2213245]

約数ペア:

[(1, 2213245), (5, 442649), (31, 71395), (109, 20305), (131, 16895), (155, 14279), (545, 4061), (655, 3379)]