203438420

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{90017}}^1$

素因数の和:90139

約数の個数: 24

約数和(自身を含む): 431006184

約数和(自身を除く): 227567764

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 90017, 180034, 360068, 450085, 900170, 1800340, 10171921, 20343842, 40687684, 50859605, 101719210, 203438420]

約数ペア:

[(1, 203438420), (2, 101719210), (4, 50859605), (5, 40687684), (10, 20343842), (20, 10171921), (113, 1800340), (226, 900170), (452, 450085), (565, 360068), (1130, 180034), (2260, 90017)]