20076564520

素因数分解:

$2^3\times 5^1\times {\mathrm{811}}^1\times {\mathrm{618883}}^1$

素因数の和:619705

約数の個数: 32

約数和(自身を含む): 45228042720

約数和(自身を除く): 25151478200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 811, 1622, 3244, 4055, 6488, 8110, 16220, 32440, 618883, 1237766, 2475532, 3094415, 4951064, 6188830, 12377660, 24755320, 501914113, 1003828226, 2007656452, 2509570565, 4015312904, 5019141130, 10038282260, 20076564520]

約数ペア:

[(1, 20076564520), (2, 10038282260), (4, 5019141130), (5, 4015312904), (8, 2509570565), (10, 2007656452), (20, 1003828226), (40, 501914113), (811, 24755320), (1622, 12377660), (3244, 6188830), (4055, 4951064), (6488, 3094415), (8110, 2475532), (16220, 1237766), (32440, 618883)]