78071680

素因数分解:

$2^7\times 5^1\times {\mathrm{199}}^1\times {\mathrm{613}}^1$

素因数の和:831

約数の個数: 64

約数和(自身を含む): 187884000

約数和(自身を除く): 109812320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 199, 320, 398, 613, 640, 796, 995, 1226, 1592, 1990, 2452, 3065, 3184, 3980, 4904, 6130, 6368, 7960, 9808, 12260, 12736, 15920, 19616, 24520, 25472, 31840, 39232, 49040, 63680, 78464, 98080, 121987, 127360, 196160, 243974, 392320, 487948, 609935, 975896, 1219870, 1951792, 2439740, 3903584, 4879480, 7807168, 9758960, 15614336, 19517920, 39035840, 78071680]

約数ペア:

[(1, 78071680), (2, 39035840), (4, 19517920), (5, 15614336), (8, 9758960), (10, 7807168), (16, 4879480), (20, 3903584), (32, 2439740), (40, 1951792), (64, 1219870), (80, 975896), (128, 609935), (160, 487948), (199, 392320), (320, 243974), (398, 196160), (613, 127360), (640, 121987), (796, 98080), (995, 78464), (1226, 63680), (1592, 49040), (1990, 39232), (2452, 31840), (3065, 25472), (3184, 24520), (3980, 19616), (4904, 15920), (6130, 12736), (6368, 12260), (7960, 9808)]