201286520

素因数分解:

$2^3\times 5^1\times {\mathrm{1123}}^1\times {\mathrm{4481}}^1$

素因数の和:5615

約数の個数: 32

約数和(自身を含む): 453399120

約数和(自身を除く): 252112600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1123, 2246, 4481, 4492, 5615, 8962, 8984, 11230, 17924, 22405, 22460, 35848, 44810, 44920, 89620, 179240, 5032163, 10064326, 20128652, 25160815, 40257304, 50321630, 100643260, 201286520]

約数ペア:

[(1, 201286520), (2, 100643260), (4, 50321630), (5, 40257304), (8, 25160815), (10, 20128652), (20, 10064326), (40, 5032163), (1123, 179240), (2246, 89620), (4481, 44920), (4492, 44810), (5615, 35848), (8962, 22460), (8984, 22405), (11230, 17924)]