205122460

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{62921}}^1$

素因数の和:63093

約数の個数: 24

約数和(自身を含む): 433406736

約数和(自身を除く): 228284276

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 62921, 125842, 251684, 314605, 629210, 1258420, 10256123, 20512246, 41024492, 51280615, 102561230, 205122460]

約数ペア:

[(1, 205122460), (2, 102561230), (4, 51280615), (5, 41024492), (10, 20512246), (20, 10256123), (163, 1258420), (326, 629210), (652, 314605), (815, 251684), (1630, 125842), (3260, 62921)]