19948960

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{3041}}^1$

素因数の和:3097

約数の個数: 48

約数和(自身を含む): 48294792

約数和(自身を除く): 28345832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 80, 82, 160, 164, 205, 328, 410, 656, 820, 1312, 1640, 3041, 3280, 6082, 6560, 12164, 15205, 24328, 30410, 48656, 60820, 97312, 121640, 124681, 243280, 249362, 486560, 498724, 623405, 997448, 1246810, 1994896, 2493620, 3989792, 4987240, 9974480, 19948960]

約数ペア:

[(1, 19948960), (2, 9974480), (4, 4987240), (5, 3989792), (8, 2493620), (10, 1994896), (16, 1246810), (20, 997448), (32, 623405), (40, 498724), (41, 486560), (80, 249362), (82, 243280), (160, 124681), (164, 121640), (205, 97312), (328, 60820), (410, 48656), (656, 30410), (820, 24328), (1312, 15205), (1640, 12164), (3041, 6560), (3280, 6082)]