20105969960

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4611461}}^1$

素因数の和:4611581

約数の個数: 32

約数和(自身を含む): 45653473800

約数和(自身を除く): 25547503840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 4611461, 9222922, 18445844, 23057305, 36891688, 46114610, 92229220, 184458440, 502649249, 1005298498, 2010596996, 2513246245, 4021193992, 5026492490, 10052984980, 20105969960]

約数ペア:

[(1, 20105969960), (2, 10052984980), (4, 5026492490), (5, 4021193992), (8, 2513246245), (10, 2010596996), (20, 1005298498), (40, 502649249), (109, 184458440), (218, 92229220), (436, 46114610), (545, 36891688), (872, 23057305), (1090, 18445844), (2180, 9222922), (4360, 4611461)]