20053900

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{6469}}^1$

素因数の和:6514

約数の個数: 36

約数和(自身を含む): 44927680

約数和(自身を除く): 24873780

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 310, 620, 775, 1550, 3100, 6469, 12938, 25876, 32345, 64690, 129380, 161725, 200539, 323450, 401078, 646900, 802156, 1002695, 2005390, 4010780, 5013475, 10026950, 20053900]

約数ペア:

[(1, 20053900), (2, 10026950), (4, 5013475), (5, 4010780), (10, 2005390), (20, 1002695), (25, 802156), (31, 646900), (50, 401078), (62, 323450), (100, 200539), (124, 161725), (155, 129380), (310, 64690), (620, 32345), (775, 25876), (1550, 12938), (3100, 6469)]