261236816

素因数分解:

$2^4\times {\mathrm{2129}}^1\times {\mathrm{7669}}^1$

素因数の和:9806

約数の個数: 20

約数和(自身を含む): 506450100

約数和(自身を除く): 245213284

約数列:

[1, 2, 4, 8, 16, 2129, 4258, 7669, 8516, 15338, 17032, 30676, 34064, 61352, 122704, 16327301, 32654602, 65309204, 130618408, 261236816]

約数ペア:

[(1, 261236816), (2, 130618408), (4, 65309204), (8, 32654602), (16, 16327301), (2129, 122704), (4258, 61352), (7669, 34064), (8516, 30676), (15338, 17032)]