27978280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{63587}}^1$

素因数の和:63609

約数の個数: 32

約数和(自身を含む): 68675040

約数和(自身を除く): 40696760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 63587, 127174, 254348, 317935, 508696, 635870, 699457, 1271740, 1398914, 2543480, 2797828, 3497285, 5595656, 6994570, 13989140, 27978280]

約数ペア:

[(1, 27978280), (2, 13989140), (4, 6994570), (5, 5595656), (8, 3497285), (10, 2797828), (11, 2543480), (20, 1398914), (22, 1271740), (40, 699457), (44, 635870), (55, 508696), (88, 317935), (110, 254348), (220, 127174), (440, 63587)]