20630648

素因数分解:

$2^3\times {\mathrm{59}}^1\times {\mathrm{109}}^1\times {\mathrm{401}}^1$

素因数の和:575

約数の個数: 32

約数和(自身を含む): 39798000

約数和(自身を除く): 19167352

約数列:

[1, 2, 4, 8, 59, 109, 118, 218, 236, 401, 436, 472, 802, 872, 1604, 3208, 6431, 12862, 23659, 25724, 43709, 47318, 51448, 87418, 94636, 174836, 189272, 349672, 2578831, 5157662, 10315324, 20630648]

約数ペア:

[(1, 20630648), (2, 10315324), (4, 5157662), (8, 2578831), (59, 349672), (109, 189272), (118, 174836), (218, 94636), (236, 87418), (401, 51448), (436, 47318), (472, 43709), (802, 25724), (872, 23659), (1604, 12862), (3208, 6431)]