990717584

素因数分解:

$2^4\times {\mathrm{211}}^1\times {\mathrm{293459}}^1$

素因数の和:293678

約数の個数: 20

約数和(自身を含む): 1928619120

約数和(自身を除く): 937901536

約数列:

[1, 2, 4, 8, 16, 211, 422, 844, 1688, 3376, 293459, 586918, 1173836, 2347672, 4695344, 61919849, 123839698, 247679396, 495358792, 990717584]

約数ペア:

[(1, 990717584), (2, 495358792), (4, 247679396), (8, 123839698), (16, 61919849), (211, 4695344), (422, 2347672), (844, 1173836), (1688, 586918), (3376, 293459)]