210907780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{620317}}^1$

素因数の和:620343

約数の個数: 24

約数和(自身を含む): 468960408

約数和(自身を除く): 258052628

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 620317, 1240634, 2481268, 3101585, 6203170, 10545389, 12406340, 21090778, 42181556, 52726945, 105453890, 210907780]

約数ペア:

[(1, 210907780), (2, 105453890), (4, 52726945), (5, 42181556), (10, 21090778), (17, 12406340), (20, 10545389), (34, 6203170), (68, 3101585), (85, 2481268), (170, 1240634), (340, 620317)]