72663280

素因数分解:

$2^4\times 5^1\times {\mathrm{439}}^1\times {\mathrm{2069}}^1$

素因数の和:2521

約数の個数: 40

約数和(自身を含む): 169408800

約数和(自身を除く): 96745520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 439, 878, 1756, 2069, 2195, 3512, 4138, 4390, 7024, 8276, 8780, 10345, 16552, 17560, 20690, 33104, 35120, 41380, 82760, 165520, 908291, 1816582, 3633164, 4541455, 7266328, 9082910, 14532656, 18165820, 36331640, 72663280]

約数ペア:

[(1, 72663280), (2, 36331640), (4, 18165820), (5, 14532656), (8, 9082910), (10, 7266328), (16, 4541455), (20, 3633164), (40, 1816582), (80, 908291), (439, 165520), (878, 82760), (1756, 41380), (2069, 35120), (2195, 33104), (3512, 20690), (4138, 17560), (4390, 16552), (7024, 10345), (8276, 8780)]