64076440

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{439}}^1$

素因数の和:580

約数の個数: 64

約数和(自身を含む): 149688000

約数和(自身を除く): 85611560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 89, 164, 178, 205, 328, 356, 410, 439, 445, 712, 820, 878, 890, 1640, 1756, 1780, 2195, 3512, 3560, 3649, 4390, 7298, 8780, 14596, 17560, 17999, 18245, 29192, 35998, 36490, 39071, 71996, 72980, 78142, 89995, 143992, 145960, 156284, 179990, 195355, 312568, 359980, 390710, 719960, 781420, 1562840, 1601911, 3203822, 6407644, 8009555, 12815288, 16019110, 32038220, 64076440]

約数ペア:

[(1, 64076440), (2, 32038220), (4, 16019110), (5, 12815288), (8, 8009555), (10, 6407644), (20, 3203822), (40, 1601911), (41, 1562840), (82, 781420), (89, 719960), (164, 390710), (178, 359980), (205, 312568), (328, 195355), (356, 179990), (410, 156284), (439, 145960), (445, 143992), (712, 89995), (820, 78142), (878, 72980), (890, 71996), (1640, 39071), (1756, 36490), (1780, 35998), (2195, 29192), (3512, 18245), (3560, 17999), (3649, 17560), (4390, 14596), (7298, 8780)]