68657645

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{173}}^1$

素因数の和:254

約数の個数: 64

約数和(自身を含む): 108241920

約数和(自身を除く): 39584275

約数列:

[1, 5, 7, 17, 23, 29, 35, 85, 115, 119, 145, 161, 173, 203, 391, 493, 595, 667, 805, 865, 1015, 1211, 1955, 2465, 2737, 2941, 3335, 3451, 3979, 4669, 5017, 6055, 11339, 13685, 14705, 17255, 19895, 20587, 23345, 25085, 27853, 35119, 56695, 67643, 79373, 85289, 102935, 115391, 139265, 175595, 338215, 396865, 426445, 473501, 576955, 597023, 807737, 1961647, 2367505, 2985115, 4038685, 9808235, 13731529, 68657645]

約数ペア:

[(1, 68657645), (5, 13731529), (7, 9808235), (17, 4038685), (23, 2985115), (29, 2367505), (35, 1961647), (85, 807737), (115, 597023), (119, 576955), (145, 473501), (161, 426445), (173, 396865), (203, 338215), (391, 175595), (493, 139265), (595, 115391), (667, 102935), (805, 85289), (865, 79373), (1015, 67643), (1211, 56695), (1955, 35119), (2465, 27853), (2737, 25085), (2941, 23345), (3335, 20587), (3451, 19895), (3979, 17255), (4669, 14705), (5017, 13685), (6055, 11339)]