2071994620

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{809}}^1\times {\mathrm{1621}}^1$

素因数の和:2518

約数の個数: 48

約数和(自身を含む): 4414435200

約数和(自身を除く): 2342440580

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 809, 1580, 1618, 1621, 3236, 3242, 4045, 6484, 8090, 8105, 16180, 16210, 32420, 63911, 127822, 128059, 255644, 256118, 319555, 512236, 639110, 640295, 1278220, 1280590, 1311389, 2561180, 2622778, 5245556, 6556945, 13113890, 26227780, 103599731, 207199462, 414398924, 517998655, 1035997310, 2071994620]

約数ペア:

[(1, 2071994620), (2, 1035997310), (4, 517998655), (5, 414398924), (10, 207199462), (20, 103599731), (79, 26227780), (158, 13113890), (316, 6556945), (395, 5245556), (790, 2622778), (809, 2561180), (1580, 1311389), (1618, 1280590), (1621, 1278220), (3236, 640295), (3242, 639110), (4045, 512236), (6484, 319555), (8090, 256118), (8105, 255644), (16180, 128059), (16210, 127822), (32420, 63911)]