78729280

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{5021}}^1$

素因数の和:5052

約数の個数: 84

約数和(自身を含む): 218125548

約数和(自身を除く): 139396268

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 320, 392, 448, 490, 560, 784, 980, 1120, 1568, 1960, 2240, 3136, 3920, 5021, 7840, 10042, 15680, 20084, 25105, 35147, 40168, 50210, 70294, 80336, 100420, 140588, 160672, 175735, 200840, 246029, 281176, 321344, 351470, 401680, 492058, 562352, 702940, 803360, 984116, 1124704, 1230145, 1405880, 1606720, 1968232, 2249408, 2460290, 2811760, 3936464, 4920580, 5623520, 7872928, 9841160, 11247040, 15745856, 19682320, 39364640, 78729280]

約数ペア:

[(1, 78729280), (2, 39364640), (4, 19682320), (5, 15745856), (7, 11247040), (8, 9841160), (10, 7872928), (14, 5623520), (16, 4920580), (20, 3936464), (28, 2811760), (32, 2460290), (35, 2249408), (40, 1968232), (49, 1606720), (56, 1405880), (64, 1230145), (70, 1124704), (80, 984116), (98, 803360), (112, 702940), (140, 562352), (160, 492058), (196, 401680), (224, 351470), (245, 321344), (280, 281176), (320, 246029), (392, 200840), (448, 175735), (490, 160672), (560, 140588), (784, 100420), (980, 80336), (1120, 70294), (1568, 50210), (1960, 40168), (2240, 35147), (3136, 25105), (3920, 20084), (5021, 15680), (7840, 10042)]