19158580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{487}}^1$

素因数の和:784

約数の個数: 48

約数和(自身を含む): 46238976

約数和(自身を除く): 27080396

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 281, 487, 562, 974, 1124, 1405, 1948, 1967, 2435, 2810, 3409, 3934, 4870, 5620, 6818, 7868, 9740, 9835, 13636, 17045, 19670, 34090, 39340, 68180, 136847, 273694, 547388, 684235, 957929, 1368470, 1915858, 2736940, 3831716, 4789645, 9579290, 19158580]

約数ペア:

[(1, 19158580), (2, 9579290), (4, 4789645), (5, 3831716), (7, 2736940), (10, 1915858), (14, 1368470), (20, 957929), (28, 684235), (35, 547388), (70, 273694), (140, 136847), (281, 68180), (487, 39340), (562, 34090), (974, 19670), (1124, 17045), (1405, 13636), (1948, 9835), (1967, 9740), (2435, 7868), (2810, 6818), (3409, 5620), (3934, 4870)]