1289220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{21487}}^1$

素因数の和:21499

約数の個数: 24

約数和(自身を含む): 3609984

約数和(自身を除く): 2320764

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 21487, 42974, 64461, 85948, 107435, 128922, 214870, 257844, 322305, 429740, 644610, 1289220]

約数ペア:

[(1, 1289220), (2, 644610), (3, 429740), (4, 322305), (5, 257844), (6, 214870), (10, 128922), (12, 107435), (15, 85948), (20, 64461), (30, 42974), (60, 21487)]