28318700

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{6907}}^1$

素因数の和:6962

約数の個数: 36

約数和(自身を含む): 62959512

約数和(自身を除く): 34640812

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 164, 205, 410, 820, 1025, 2050, 4100, 6907, 13814, 27628, 34535, 69070, 138140, 172675, 283187, 345350, 566374, 690700, 1132748, 1415935, 2831870, 5663740, 7079675, 14159350, 28318700]

約数ペア:

[(1, 28318700), (2, 14159350), (4, 7079675), (5, 5663740), (10, 2831870), (20, 1415935), (25, 1132748), (41, 690700), (50, 566374), (82, 345350), (100, 283187), (164, 172675), (205, 138140), (410, 69070), (820, 34535), (1025, 27628), (2050, 13814), (4100, 6907)]