19640890

素因数分解:

$2^1\times 5^1\times {\mathrm{359}}^1\times {\mathrm{5471}}^1$

素因数の和:5837

約数の個数: 16

約数和(自身を含む): 35458560

約数和(自身を除く): 15817670

約数列:

[1, 2, 5, 10, 359, 718, 1795, 3590, 5471, 10942, 27355, 54710, 1964089, 3928178, 9820445, 19640890]

約数ペア:

[(1, 19640890), (2, 9820445), (5, 3928178), (10, 1964089), (359, 54710), (718, 27355), (1795, 10942), (3590, 5471)]