55742780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{67979}}^1$

素因数の和:68029

約数の個数: 24

約数和(自身を含む): 119916720

約数和(自身を除く): 64173940

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 67979, 135958, 271916, 339895, 679790, 1359580, 2787139, 5574278, 11148556, 13935695, 27871390, 55742780]

約数ペア:

[(1, 55742780), (2, 27871390), (4, 13935695), (5, 11148556), (10, 5574278), (20, 2787139), (41, 1359580), (82, 679790), (164, 339895), (205, 271916), (410, 135958), (820, 67979)]