77895520

素因数分解:

$2^5\times 5^1\times {\mathrm{71}}^1\times {\mathrm{6857}}^1$

素因数の和:6943

約数の個数: 48

約数和(自身を含む): 186647328

約数和(自身を除く): 108751808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 71, 80, 142, 160, 284, 355, 568, 710, 1136, 1420, 2272, 2840, 5680, 6857, 11360, 13714, 27428, 34285, 54856, 68570, 109712, 137140, 219424, 274280, 486847, 548560, 973694, 1097120, 1947388, 2434235, 3894776, 4868470, 7789552, 9736940, 15579104, 19473880, 38947760, 77895520]

約数ペア:

[(1, 77895520), (2, 38947760), (4, 19473880), (5, 15579104), (8, 9736940), (10, 7789552), (16, 4868470), (20, 3894776), (32, 2434235), (40, 1947388), (71, 1097120), (80, 973694), (142, 548560), (160, 486847), (284, 274280), (355, 219424), (568, 137140), (710, 109712), (1136, 68570), (1420, 54856), (2272, 34285), (2840, 27428), (5680, 13714), (6857, 11360)]