4138520

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{659}}^1$

素因数の和:827

約数の個数: 32

約数和(自身を含む): 9385200

約数和(自身を除く): 5246680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 659, 785, 1256, 1318, 1570, 2636, 3140, 3295, 5272, 6280, 6590, 13180, 26360, 103463, 206926, 413852, 517315, 827704, 1034630, 2069260, 4138520]

約数ペア:

[(1, 4138520), (2, 2069260), (4, 1034630), (5, 827704), (8, 517315), (10, 413852), (20, 206926), (40, 103463), (157, 26360), (314, 13180), (628, 6590), (659, 6280), (785, 5272), (1256, 3295), (1318, 3140), (1570, 2636)]