31278885

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{1163}}^1$

素因数の和:1345

約数の個数: 32

約数和(自身を含む): 54978048

約数和(自身を除く): 23699163

約数列:

[1, 3, 5, 11, 15, 33, 55, 163, 165, 489, 815, 1163, 1793, 2445, 3489, 5379, 5815, 8965, 12793, 17445, 26895, 38379, 63965, 189569, 191895, 568707, 947845, 2085259, 2843535, 6255777, 10426295, 31278885]

約数ペア:

[(1, 31278885), (3, 10426295), (5, 6255777), (11, 2843535), (15, 2085259), (33, 947845), (55, 568707), (163, 191895), (165, 189569), (489, 63965), (815, 38379), (1163, 26895), (1793, 17445), (2445, 12793), (3489, 8965), (5379, 5815)]