7949840

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2311}}^1$

素因数の和:2367

約数の個数: 40

約数和(自身を含む): 18921408

約数和(自身を除く): 10971568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 2311, 3440, 4622, 9244, 11555, 18488, 23110, 36976, 46220, 92440, 99373, 184880, 198746, 397492, 496865, 794984, 993730, 1589968, 1987460, 3974920, 7949840]

約数ペア:

[(1, 7949840), (2, 3974920), (4, 1987460), (5, 1589968), (8, 993730), (10, 794984), (16, 496865), (20, 397492), (40, 198746), (43, 184880), (80, 99373), (86, 92440), (172, 46220), (215, 36976), (344, 23110), (430, 18488), (688, 11555), (860, 9244), (1720, 4622), (2311, 3440)]