81090660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{193073}}^1$

素因数の和:193092

約数の個数: 48

約数和(自身を含む): 259491456

約数和(自身を除く): 178400796

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 193073, 386146, 579219, 772292, 965365, 1158438, 1351511, 1930730, 2316876, 2703022, 2896095, 3861460, 4054533, 5406044, 5792190, 6757555, 8109066, 11584380, 13515110, 16218132, 20272665, 27030220, 40545330, 81090660]

約数ペア:

[(1, 81090660), (2, 40545330), (3, 27030220), (4, 20272665), (5, 16218132), (6, 13515110), (7, 11584380), (10, 8109066), (12, 6757555), (14, 5792190), (15, 5406044), (20, 4054533), (21, 3861460), (28, 2896095), (30, 2703022), (35, 2316876), (42, 1930730), (60, 1351511), (70, 1158438), (84, 965365), (105, 772292), (140, 579219), (210, 386146), (420, 193073)]