78291220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{79889}}^1$

素因数の和:79912

約数の個数: 36

約数和(自身を含む): 191256660

約数和(自身を除く): 112965440

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 79889, 159778, 319556, 399445, 559223, 798890, 1118446, 1597780, 2236892, 2796115, 3914561, 5592230, 7829122, 11184460, 15658244, 19572805, 39145610, 78291220]

約数ペア:

[(1, 78291220), (2, 39145610), (4, 19572805), (5, 15658244), (7, 11184460), (10, 7829122), (14, 5592230), (20, 3914561), (28, 2796115), (35, 2236892), (49, 1597780), (70, 1118446), (98, 798890), (140, 559223), (196, 399445), (245, 319556), (490, 159778), (980, 79889)]