87841988

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{31873}}^1$

素因数の和:31943

約数の個数: 24

約数和(自身を含む): 168677208

約数和(自身を除く): 80835220

約数列:

[1, 2, 4, 13, 26, 52, 53, 106, 212, 689, 1378, 2756, 31873, 63746, 127492, 414349, 828698, 1657396, 1689269, 3378538, 6757076, 21960497, 43920994, 87841988]

約数ペア:

[(1, 87841988), (2, 43920994), (4, 21960497), (13, 6757076), (26, 3378538), (52, 1689269), (53, 1657396), (106, 828698), (212, 414349), (689, 127492), (1378, 63746), (2756, 31873)]