30679978

素因数分解:

$2^1\times 7^4\times {\mathrm{6389}}^1$

素因数の和:6419

約数の個数: 20

約数和(自身を含む): 53695170

約数和(自身を除く): 23015192

約数列:

[1, 2, 7, 14, 49, 98, 343, 686, 2401, 4802, 6389, 12778, 44723, 89446, 313061, 626122, 2191427, 4382854, 15339989, 30679978]

約数ペア:

[(1, 30679978), (2, 15339989), (7, 4382854), (14, 2191427), (49, 626122), (98, 313061), (343, 89446), (686, 44723), (2401, 12778), (4802, 6389)]