20422400

素因数分解:

$2^8\times 5^2\times {\mathrm{3191}}^1$

素因数の和:3217

約数の個数: 54

約数和(自身を含む): 50564472

約数和(自身を除く): 30142072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 640, 800, 1280, 1600, 3191, 3200, 6382, 6400, 12764, 15955, 25528, 31910, 51056, 63820, 79775, 102112, 127640, 159550, 204224, 255280, 319100, 408448, 510560, 638200, 816896, 1021120, 1276400, 2042240, 2552800, 4084480, 5105600, 10211200, 20422400]

約数ペア:

[(1, 20422400), (2, 10211200), (4, 5105600), (5, 4084480), (8, 2552800), (10, 2042240), (16, 1276400), (20, 1021120), (25, 816896), (32, 638200), (40, 510560), (50, 408448), (64, 319100), (80, 255280), (100, 204224), (128, 159550), (160, 127640), (200, 102112), (256, 79775), (320, 63820), (400, 51056), (640, 31910), (800, 25528), (1280, 15955), (1600, 12764), (3191, 6400), (3200, 6382)]