179390620

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{173}}^1\times {\mathrm{373}}^1$

素因数の和:694

約数の個数: 48

約数和(自身を含む): 382646880

約数和(自身を除く): 203256260

約数列:

[1, 2, 4, 5, 10, 20, 139, 173, 278, 346, 373, 556, 692, 695, 746, 865, 1390, 1492, 1730, 1865, 2780, 3460, 3730, 7460, 24047, 48094, 51847, 64529, 96188, 103694, 120235, 129058, 207388, 240470, 258116, 259235, 322645, 480940, 518470, 645290, 1036940, 1290580, 8969531, 17939062, 35878124, 44847655, 89695310, 179390620]

約数ペア:

[(1, 179390620), (2, 89695310), (4, 44847655), (5, 35878124), (10, 17939062), (20, 8969531), (139, 1290580), (173, 1036940), (278, 645290), (346, 518470), (373, 480940), (556, 322645), (692, 259235), (695, 258116), (746, 240470), (865, 207388), (1390, 129058), (1492, 120235), (1730, 103694), (1865, 96188), (2780, 64529), (3460, 51847), (3730, 48094), (7460, 24047)]