25005440

素因数分解:

$2^7\times 5^1\times {\mathrm{89}}^1\times {\mathrm{439}}^1$

素因数の和:547

約数の個数: 64

約数和(自身を含む): 60588000

約数和(自身を除く): 35582560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 128, 160, 178, 320, 356, 439, 445, 640, 712, 878, 890, 1424, 1756, 1780, 2195, 2848, 3512, 3560, 4390, 5696, 7024, 7120, 8780, 11392, 14048, 14240, 17560, 28096, 28480, 35120, 39071, 56192, 56960, 70240, 78142, 140480, 156284, 195355, 280960, 312568, 390710, 625136, 781420, 1250272, 1562840, 2500544, 3125680, 5001088, 6251360, 12502720, 25005440]

約数ペア:

[(1, 25005440), (2, 12502720), (4, 6251360), (5, 5001088), (8, 3125680), (10, 2500544), (16, 1562840), (20, 1250272), (32, 781420), (40, 625136), (64, 390710), (80, 312568), (89, 280960), (128, 195355), (160, 156284), (178, 140480), (320, 78142), (356, 70240), (439, 56960), (445, 56192), (640, 39071), (712, 35120), (878, 28480), (890, 28096), (1424, 17560), (1756, 14240), (1780, 14048), (2195, 11392), (2848, 8780), (3512, 7120), (3560, 7024), (4390, 5696)]