215999840

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{27551}}^1$

素因数の和:27580

約数の個数: 72

約数和(自身を含む): 593635392

約数和(自身を除く): 377635552

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 27551, 55102, 110204, 137755, 192857, 220408, 275510, 385714, 440816, 551020, 771428, 881632, 964285, 1102040, 1349999, 1542856, 1928570, 2204080, 2699998, 3085712, 3857140, 4408160, 5399996, 6171424, 6749995, 7714280, 10799992, 13499990, 15428560, 21599984, 26999980, 30857120, 43199968, 53999960, 107999920, 215999840]

約数ペア:

[(1, 215999840), (2, 107999920), (4, 53999960), (5, 43199968), (7, 30857120), (8, 26999980), (10, 21599984), (14, 15428560), (16, 13499990), (20, 10799992), (28, 7714280), (32, 6749995), (35, 6171424), (40, 5399996), (49, 4408160), (56, 3857140), (70, 3085712), (80, 2699998), (98, 2204080), (112, 1928570), (140, 1542856), (160, 1349999), (196, 1102040), (224, 964285), (245, 881632), (280, 771428), (392, 551020), (490, 440816), (560, 385714), (784, 275510), (980, 220408), (1120, 192857), (1568, 137755), (1960, 110204), (3920, 55102), (7840, 27551)]