206475320

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{10513}}^1$

素因数の和:11015

約数の個数: 32

約数和(自身を含む): 465559920

約数和(自身を除く): 259084600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 982, 1964, 2455, 3928, 4910, 9820, 10513, 19640, 21026, 42052, 52565, 84104, 105130, 210260, 420520, 5161883, 10323766, 20647532, 25809415, 41295064, 51618830, 103237660, 206475320]

約数ペア:

[(1, 206475320), (2, 103237660), (4, 51618830), (5, 41295064), (8, 25809415), (10, 20647532), (20, 10323766), (40, 5161883), (491, 420520), (982, 210260), (1964, 105130), (2455, 84104), (3928, 52565), (4910, 42052), (9820, 21026), (10513, 19640)]