7912905

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1$

素因数の和:87

約数の個数: 128

約数和(自身を含む): 18579456

約数和(自身を除く): 10666551

約数列:

[1, 3, 5, 7, 11, 13, 15, 17, 21, 31, 33, 35, 39, 51, 55, 65, 77, 85, 91, 93, 105, 119, 143, 155, 165, 187, 195, 217, 221, 231, 255, 273, 341, 357, 385, 403, 429, 455, 465, 527, 561, 595, 651, 663, 715, 935, 1001, 1023, 1085, 1105, 1155, 1209, 1309, 1365, 1547, 1581, 1705, 1785, 2015, 2145, 2387, 2431, 2635, 2805, 2821, 3003, 3255, 3315, 3689, 3927, 4433, 4641, 5005, 5115, 5797, 6045, 6545, 6851, 7161, 7293, 7735, 7905, 8463, 11067, 11935, 12155, 13299, 14105, 15015, 17017, 17391, 18445, 19635, 20553, 22165, 23205, 28985, 31031, 34255, 35805, 36465, 40579, 42315, 47957, 51051, 55335, 66495, 75361, 85085, 86955, 93093, 102765, 121737, 143871, 155155, 202895, 226083, 239785, 255255, 376805, 465465, 527527, 608685, 719355, 1130415, 1582581, 2637635, 7912905]

約数ペア:

[(1, 7912905), (3, 2637635), (5, 1582581), (7, 1130415), (11, 719355), (13, 608685), (15, 527527), (17, 465465), (21, 376805), (31, 255255), (33, 239785), (35, 226083), (39, 202895), (51, 155155), (55, 143871), (65, 121737), (77, 102765), (85, 93093), (91, 86955), (93, 85085), (105, 75361), (119, 66495), (143, 55335), (155, 51051), (165, 47957), (187, 42315), (195, 40579), (217, 36465), (221, 35805), (231, 34255), (255, 31031), (273, 28985), (341, 23205), (357, 22165), (385, 20553), (403, 19635), (429, 18445), (455, 17391), (465, 17017), (527, 15015), (561, 14105), (595, 13299), (651, 12155), (663, 11935), (715, 11067), (935, 8463), (1001, 7905), (1023, 7735), (1085, 7293), (1105, 7161), (1155, 6851), (1209, 6545), (1309, 6045), (1365, 5797), (1547, 5115), (1581, 5005), (1705, 4641), (1785, 4433), (2015, 3927), (2145, 3689), (2387, 3315), (2431, 3255), (2635, 3003), (2805, 2821)]