642884

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{769}}^1$

素因数の和:803

約数の個数: 24

約数和(自身を含む): 1293600

約数和(自身を除く): 650716

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 209, 418, 769, 836, 1538, 3076, 8459, 14611, 16918, 29222, 33836, 58444, 160721, 321442, 642884]

約数ペア:

[(1, 642884), (2, 321442), (4, 160721), (11, 58444), (19, 33836), (22, 29222), (38, 16918), (44, 14611), (76, 8459), (209, 3076), (418, 1538), (769, 836)]