19884305

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1453}}^1$

素因数の和:1505

約数の個数: 32

約数和(自身を含む): 30150144

約数和(自身を除く): 10265839

約数列:

[1, 5, 7, 17, 23, 35, 85, 115, 119, 161, 391, 595, 805, 1453, 1955, 2737, 7265, 10171, 13685, 24701, 33419, 50855, 123505, 167095, 172907, 233933, 568123, 864535, 1169665, 2840615, 3976861, 19884305]

約数ペア:

[(1, 19884305), (5, 3976861), (7, 2840615), (17, 1169665), (23, 864535), (35, 568123), (85, 233933), (115, 172907), (119, 167095), (161, 123505), (391, 50855), (595, 33419), (805, 24701), (1453, 13685), (1955, 10171), (2737, 7265)]