77861560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{487}}^1\times {\mathrm{571}}^1$

素因数の和:1076

約数の個数: 64

約数和(自身を含む): 200977920

約数和(自身を除く): 123116360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 487, 571, 974, 1142, 1948, 2284, 2435, 2855, 3409, 3896, 3997, 4568, 4870, 5710, 6818, 7994, 9740, 11420, 13636, 15988, 17045, 19480, 19985, 22840, 27272, 31976, 34090, 39970, 68180, 79940, 136360, 159880, 278077, 556154, 1112308, 1390385, 1946539, 2224616, 2780770, 3893078, 5561540, 7786156, 9732695, 11123080, 15572312, 19465390, 38930780, 77861560]

約数ペア:

[(1, 77861560), (2, 38930780), (4, 19465390), (5, 15572312), (7, 11123080), (8, 9732695), (10, 7786156), (14, 5561540), (20, 3893078), (28, 2780770), (35, 2224616), (40, 1946539), (56, 1390385), (70, 1112308), (140, 556154), (280, 278077), (487, 159880), (571, 136360), (974, 79940), (1142, 68180), (1948, 39970), (2284, 34090), (2435, 31976), (2855, 27272), (3409, 22840), (3896, 19985), (3997, 19480), (4568, 17045), (4870, 15988), (5710, 13636), (6818, 11420), (7994, 9740)]