6987220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{8521}}^1$

素因数の和:8571

約数の個数: 24

約数和(自身を含む): 15032808

約数和(自身を除く): 8045588

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 8521, 17042, 34084, 42605, 85210, 170420, 349361, 698722, 1397444, 1746805, 3493610, 6987220]

約数ペア:

[(1, 6987220), (2, 3493610), (4, 1746805), (5, 1397444), (10, 698722), (20, 349361), (41, 170420), (82, 85210), (164, 42605), (205, 34084), (410, 17042), (820, 8521)]