2016355840

素因数分解:

$2^9\times 5^1\times {\mathrm{787639}}^1$

素因数の和:787662

約数の個数: 40

約数和(自身を含む): 4834534320

約数和(自身を除く): 2818178480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 787639, 1575278, 3150556, 3938195, 6301112, 7876390, 12602224, 15752780, 25204448, 31505560, 50408896, 63011120, 100817792, 126022240, 201635584, 252044480, 403271168, 504088960, 1008177920, 2016355840]

約数ペア:

[(1, 2016355840), (2, 1008177920), (4, 504088960), (5, 403271168), (8, 252044480), (10, 201635584), (16, 126022240), (20, 100817792), (32, 63011120), (40, 50408896), (64, 31505560), (80, 25204448), (128, 15752780), (160, 12602224), (256, 7876390), (320, 6301112), (512, 3938195), (640, 3150556), (1280, 1575278), (2560, 787639)]