856552280

素因数分解:

$2^3\times 5^1\times {\mathrm{1013}}^1\times {\mathrm{21139}}^1$

素因数の和:22163

約数の個数: 32

約数和(自身を含む): 1929236400

約数和(自身を除く): 1072684120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1013, 2026, 4052, 5065, 8104, 10130, 20260, 21139, 40520, 42278, 84556, 105695, 169112, 211390, 422780, 845560, 21413807, 42827614, 85655228, 107069035, 171310456, 214138070, 428276140, 856552280]

約数ペア:

[(1, 856552280), (2, 428276140), (4, 214138070), (5, 171310456), (8, 107069035), (10, 85655228), (20, 42827614), (40, 21413807), (1013, 845560), (2026, 422780), (4052, 211390), (5065, 169112), (8104, 105695), (10130, 84556), (20260, 42278), (21139, 40520)]