889220

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{257}}^1$

素因数の和:439

約数の個数: 24

約数和(自身を含む): 1885464

約数和(自身を除く): 996244

約数列:

[1, 2, 4, 5, 10, 20, 173, 257, 346, 514, 692, 865, 1028, 1285, 1730, 2570, 3460, 5140, 44461, 88922, 177844, 222305, 444610, 889220]

約数ペア:

[(1, 889220), (2, 444610), (4, 222305), (5, 177844), (10, 88922), (20, 44461), (173, 5140), (257, 3460), (346, 2570), (514, 1730), (692, 1285), (865, 1028)]