20457586805

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{87931}}^1$

素因数の和:88065

約数の個数: 32

約数和(自身を含む): 27012710400

約数和(自身を除く): 6555123595

約数列:

[1, 5, 19, 31, 79, 95, 155, 395, 589, 1501, 2449, 2945, 7505, 12245, 46531, 87931, 232655, 439655, 1670689, 2725861, 6946549, 8353445, 13629305, 34732745, 51791359, 131984431, 215343019, 258956795, 659922155, 1076715095, 4091517361, 20457586805]

約数ペア:

[(1, 20457586805), (5, 4091517361), (19, 1076715095), (31, 659922155), (79, 258956795), (95, 215343019), (155, 131984431), (395, 51791359), (589, 34732745), (1501, 13629305), (2449, 8353445), (2945, 6946549), (7505, 2725861), (12245, 1670689), (46531, 439655), (87931, 232655)]