51280720

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{7723}}^1$

素因数の和:7819

約数の個数: 40

約数和(自身を含む): 120679776

約数和(自身を除く): 69399056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 166, 332, 415, 664, 830, 1328, 1660, 3320, 6640, 7723, 15446, 30892, 38615, 61784, 77230, 123568, 154460, 308920, 617840, 641009, 1282018, 2564036, 3205045, 5128072, 6410090, 10256144, 12820180, 25640360, 51280720]

約数ペア:

[(1, 51280720), (2, 25640360), (4, 12820180), (5, 10256144), (8, 6410090), (10, 5128072), (16, 3205045), (20, 2564036), (40, 1282018), (80, 641009), (83, 617840), (166, 308920), (332, 154460), (415, 123568), (664, 77230), (830, 61784), (1328, 38615), (1660, 30892), (3320, 15446), (6640, 7723)]