1218376460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{8702689}}^1$

素因数の和:8702705

約数の個数: 24

約数和(自身を含む): 2924103840

約数和(自身を除く): 1705727380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 8702689, 17405378, 34810756, 43513445, 60918823, 87026890, 121837646, 174053780, 243675292, 304594115, 609188230, 1218376460]

約数ペア:

[(1, 1218376460), (2, 609188230), (4, 304594115), (5, 243675292), (7, 174053780), (10, 121837646), (14, 87026890), (20, 60918823), (28, 43513445), (35, 34810756), (70, 17405378), (140, 8702689)]