78142520

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^2\times {\mathrm{1427}}^1$

素因数の和:1512

約数の個数: 48

約数和(自身を含む): 180827640

約数和(自身を除く): 102685120

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1369, 1427, 1480, 2738, 2854, 5476, 5708, 6845, 7135, 10952, 11416, 13690, 14270, 27380, 28540, 52799, 54760, 57080, 105598, 211196, 263995, 422392, 527990, 1055980, 1953563, 2111960, 3907126, 7814252, 9767815, 15628504, 19535630, 39071260, 78142520]

約数ペア:

[(1, 78142520), (2, 39071260), (4, 19535630), (5, 15628504), (8, 9767815), (10, 7814252), (20, 3907126), (37, 2111960), (40, 1953563), (74, 1055980), (148, 527990), (185, 422392), (296, 263995), (370, 211196), (740, 105598), (1369, 57080), (1427, 54760), (1480, 52799), (2738, 28540), (2854, 27380), (5476, 14270), (5708, 13690), (6845, 11416), (7135, 10952)]