9780138240

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{2546911}}^1$

素因数の和:2546935

約数の個数: 72

約数和(自身を含む): 31235328768

約数和(自身を除く): 21455190528

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 640, 768, 960, 1280, 1920, 3840, 2546911, 5093822, 7640733, 10187644, 12734555, 15281466, 20375288, 25469110, 30562932, 38203665, 40750576, 50938220, 61125864, 76407330, 81501152, 101876440, 122251728, 152814660, 163002304, 203752880, 244503456, 305629320, 326004608, 407505760, 489006912, 611258640, 652009216, 815011520, 978013824, 1222517280, 1630023040, 1956027648, 2445034560, 3260046080, 4890069120, 9780138240]

約数ペア:

[(1, 9780138240), (2, 4890069120), (3, 3260046080), (4, 2445034560), (5, 1956027648), (6, 1630023040), (8, 1222517280), (10, 978013824), (12, 815011520), (15, 652009216), (16, 611258640), (20, 489006912), (24, 407505760), (30, 326004608), (32, 305629320), (40, 244503456), (48, 203752880), (60, 163002304), (64, 152814660), (80, 122251728), (96, 101876440), (120, 81501152), (128, 76407330), (160, 61125864), (192, 50938220), (240, 40750576), (256, 38203665), (320, 30562932), (384, 25469110), (480, 20375288), (640, 15281466), (768, 12734555), (960, 10187644), (1280, 7640733), (1920, 5093822), (3840, 2546911)]