861274085

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1019}}^1$

素因数の和:1122

約数の個数: 64

約数和(自身を含む): 1316044800

約数和(自身を除く): 454770715

約数列:

[1, 5, 7, 19, 31, 35, 41, 95, 133, 155, 205, 217, 287, 589, 665, 779, 1019, 1085, 1271, 1435, 2945, 3895, 4123, 5095, 5453, 6355, 7133, 8897, 19361, 20615, 24149, 27265, 31589, 35665, 41779, 44485, 96805, 120745, 135527, 157945, 169043, 208895, 221123, 292453, 600191, 677635, 793801, 845215, 1105615, 1295149, 1462265, 3000955, 3969005, 4201337, 5556607, 6475745, 9066043, 21006685, 24607831, 27783035, 45330215, 123039155, 172254817, 861274085]

約数ペア:

[(1, 861274085), (5, 172254817), (7, 123039155), (19, 45330215), (31, 27783035), (35, 24607831), (41, 21006685), (95, 9066043), (133, 6475745), (155, 5556607), (205, 4201337), (217, 3969005), (287, 3000955), (589, 1462265), (665, 1295149), (779, 1105615), (1019, 845215), (1085, 793801), (1271, 677635), (1435, 600191), (2945, 292453), (3895, 221123), (4123, 208895), (5095, 169043), (5453, 157945), (6355, 135527), (7133, 120745), (8897, 96805), (19361, 44485), (20615, 41779), (24149, 35665), (27265, 31589)]