80721795

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1487}}^1$

素因数の和:1560

約数の個数: 64

約数和(自身を含む): 164560896

約数和(自身を除く): 83839101

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 47, 55, 77, 105, 141, 165, 231, 235, 329, 385, 517, 705, 987, 1155, 1487, 1551, 1645, 2585, 3619, 4461, 4935, 7435, 7755, 10409, 10857, 16357, 18095, 22305, 31227, 49071, 52045, 54285, 69889, 81785, 114499, 156135, 209667, 245355, 343497, 349445, 489223, 572495, 768779, 1048335, 1467669, 1717485, 2306337, 2446115, 3843895, 5381453, 7338345, 11531685, 16144359, 26907265, 80721795]

約数ペア:

[(1, 80721795), (3, 26907265), (5, 16144359), (7, 11531685), (11, 7338345), (15, 5381453), (21, 3843895), (33, 2446115), (35, 2306337), (47, 1717485), (55, 1467669), (77, 1048335), (105, 768779), (141, 572495), (165, 489223), (231, 349445), (235, 343497), (329, 245355), (385, 209667), (517, 156135), (705, 114499), (987, 81785), (1155, 69889), (1487, 54285), (1551, 52045), (1645, 49071), (2585, 31227), (3619, 22305), (4461, 18095), (4935, 16357), (7435, 10857), (7755, 10409)]