1289460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{21491}}^1$

素因数の和:21503

約数の個数: 24

約数和(自身を含む): 3610656

約数和(自身を除く): 2321196

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 21491, 42982, 64473, 85964, 107455, 128946, 214910, 257892, 322365, 429820, 644730, 1289460]

約数ペア:

[(1, 1289460), (2, 644730), (3, 429820), (4, 322365), (5, 257892), (6, 214910), (10, 128946), (12, 107455), (15, 85964), (20, 64473), (30, 42982), (60, 21491)]