128152880

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{439}}^1$

素因数の和:582

約数の個数: 80

約数和(自身を含む): 309355200

約数和(自身を除く): 181202320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 89, 164, 178, 205, 328, 356, 410, 439, 445, 656, 712, 820, 878, 890, 1424, 1640, 1756, 1780, 2195, 3280, 3512, 3560, 3649, 4390, 7024, 7120, 7298, 8780, 14596, 17560, 17999, 18245, 29192, 35120, 35998, 36490, 39071, 58384, 71996, 72980, 78142, 89995, 143992, 145960, 156284, 179990, 195355, 287984, 291920, 312568, 359980, 390710, 625136, 719960, 781420, 1439920, 1562840, 1601911, 3125680, 3203822, 6407644, 8009555, 12815288, 16019110, 25630576, 32038220, 64076440, 128152880]

約数ペア:

[(1, 128152880), (2, 64076440), (4, 32038220), (5, 25630576), (8, 16019110), (10, 12815288), (16, 8009555), (20, 6407644), (40, 3203822), (41, 3125680), (80, 1601911), (82, 1562840), (89, 1439920), (164, 781420), (178, 719960), (205, 625136), (328, 390710), (356, 359980), (410, 312568), (439, 291920), (445, 287984), (656, 195355), (712, 179990), (820, 156284), (878, 145960), (890, 143992), (1424, 89995), (1640, 78142), (1756, 72980), (1780, 71996), (2195, 58384), (3280, 39071), (3512, 36490), (3560, 35998), (3649, 35120), (4390, 29192), (7024, 18245), (7120, 17999), (7298, 17560), (8780, 14596)]