90509320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{205703}}^1$

素因数の和:205725

約数の個数: 32

約数和(自身を含む): 222160320

約数和(自身を除く): 131651000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 205703, 411406, 822812, 1028515, 1645624, 2057030, 2262733, 4114060, 4525466, 8228120, 9050932, 11313665, 18101864, 22627330, 45254660, 90509320]

約数ペア:

[(1, 90509320), (2, 45254660), (4, 22627330), (5, 18101864), (8, 11313665), (10, 9050932), (11, 8228120), (20, 4525466), (22, 4114060), (40, 2262733), (44, 2057030), (55, 1645624), (88, 1028515), (110, 822812), (220, 411406), (440, 205703)]