989815678

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{773}}^1\times {\mathrm{1087}}^1$

素因数の和:1912

約数の個数: 32

約数和(自身を含む): 1616855040

約数和(自身を除く): 627039362

約数列:

[1, 2, 19, 31, 38, 62, 589, 773, 1087, 1178, 1546, 2174, 14687, 20653, 23963, 29374, 33697, 41306, 47926, 67394, 455297, 640243, 840251, 910594, 1280486, 1680502, 15964769, 26047781, 31929538, 52095562, 494907839, 989815678]

約数ペア:

[(1, 989815678), (2, 494907839), (19, 52095562), (31, 31929538), (38, 26047781), (62, 15964769), (589, 1680502), (773, 1280486), (1087, 910594), (1178, 840251), (1546, 640243), (2174, 455297), (14687, 67394), (20653, 47926), (23963, 41306), (29374, 33697)]