201900580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{206021}}^1$

素因数の和:206044

約数の個数: 36

約数和(自身を含む): 493216668

約数和(自身を除く): 291316088

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 206021, 412042, 824084, 1030105, 1442147, 2060210, 2884294, 4120420, 5768588, 7210735, 10095029, 14421470, 20190058, 28842940, 40380116, 50475145, 100950290, 201900580]

約数ペア:

[(1, 201900580), (2, 100950290), (4, 50475145), (5, 40380116), (7, 28842940), (10, 20190058), (14, 14421470), (20, 10095029), (28, 7210735), (35, 5768588), (49, 4120420), (70, 2884294), (98, 2060210), (140, 1442147), (196, 1030105), (245, 824084), (490, 412042), (980, 206021)]