154145620

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{70709}}^1$

素因数の和:70827

約数の個数: 24

約数和(自身を含む): 326680200

約数和(自身を除く): 172534580

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 70709, 141418, 282836, 353545, 707090, 1414180, 7707281, 15414562, 30829124, 38536405, 77072810, 154145620]

約数ペア:

[(1, 154145620), (2, 77072810), (4, 38536405), (5, 30829124), (10, 15414562), (20, 7707281), (109, 1414180), (218, 707090), (436, 353545), (545, 282836), (1090, 141418), (2180, 70709)]