128891109

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1\times {\mathrm{163}}^1$

素因数の和:405

約数の個数: 32

約数和(自身を含む): 183024000

約数和(自身を除く): 54132891

約数列:

[1, 3, 29, 61, 87, 149, 163, 183, 447, 489, 1769, 4321, 4727, 5307, 9089, 9943, 12963, 14181, 24287, 27267, 29829, 72861, 263581, 288347, 704323, 790743, 865041, 1481507, 2112969, 4444521, 42963703, 128891109]

約数ペア:

[(1, 128891109), (3, 42963703), (29, 4444521), (61, 2112969), (87, 1481507), (149, 865041), (163, 790743), (183, 704323), (447, 288347), (489, 263581), (1769, 72861), (4321, 29829), (4727, 27267), (5307, 24287), (9089, 14181), (9943, 12963)]