66781365

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{2113}}^1$

素因数の和:2178

約数の個数: 48

約数和(自身を含む): 127245888

約数和(自身を除く): 60464523

約数列:

[1, 3, 5, 7, 15, 21, 35, 43, 49, 105, 129, 147, 215, 245, 301, 645, 735, 903, 1505, 2107, 2113, 4515, 6321, 6339, 10535, 10565, 14791, 31605, 31695, 44373, 73955, 90859, 103537, 221865, 272577, 310611, 454295, 517685, 636013, 1362885, 1553055, 1908039, 3180065, 4452091, 9540195, 13356273, 22260455, 66781365]

約数ペア:

[(1, 66781365), (3, 22260455), (5, 13356273), (7, 9540195), (15, 4452091), (21, 3180065), (35, 1908039), (43, 1553055), (49, 1362885), (105, 636013), (129, 517685), (147, 454295), (215, 310611), (245, 272577), (301, 221865), (645, 103537), (735, 90859), (903, 73955), (1505, 44373), (2107, 31695), (2113, 31605), (4515, 14791), (6321, 10565), (6339, 10535)]