20605640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{46831}}^1$

素因数の和:46853

約数の個数: 32

約数和(自身を含む): 50578560

約数和(自身を除く): 29972920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 46831, 93662, 187324, 234155, 374648, 468310, 515141, 936620, 1030282, 1873240, 2060564, 2575705, 4121128, 5151410, 10302820, 20605640]

約数ペア:

[(1, 20605640), (2, 10302820), (4, 5151410), (5, 4121128), (8, 2575705), (10, 2060564), (11, 1873240), (20, 1030282), (22, 936620), (40, 515141), (44, 468310), (55, 374648), (88, 234155), (110, 187324), (220, 93662), (440, 46831)]