1213377980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^2\times {\mathrm{72139}}^1$

素因数の和:72206

約数の個数: 36

約数和(自身を含む): 2639025480

約数和(自身を除く): 1425647500

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 841, 1682, 3364, 4205, 8410, 16820, 72139, 144278, 288556, 360695, 721390, 1442780, 2092031, 4184062, 8368124, 10460155, 20920310, 41840620, 60668899, 121337798, 242675596, 303344495, 606688990, 1213377980]

約数ペア:

[(1, 1213377980), (2, 606688990), (4, 303344495), (5, 242675596), (10, 121337798), (20, 60668899), (29, 41840620), (58, 20920310), (116, 10460155), (145, 8368124), (290, 4184062), (580, 2092031), (841, 1442780), (1682, 721390), (3364, 360695), (4205, 288556), (8410, 144278), (16820, 72139)]