202011220

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{67789}}^1$

素因数の和:67947

約数の個数: 24

約数和(自身を含む): 427077000

約数和(自身を除く): 225065780

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 67789, 135578, 271156, 338945, 677890, 1355780, 10100561, 20201122, 40402244, 50502805, 101005610, 202011220]

約数ペア:

[(1, 202011220), (2, 101005610), (4, 50502805), (5, 40402244), (10, 20201122), (20, 10100561), (149, 1355780), (298, 677890), (596, 338945), (745, 271156), (1490, 135578), (2980, 67789)]