81308745

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{619}}^1$

素因数の和:779

約数の個数: 64

約数和(自身を含む): 166656000

約数和(自身を除く): 85347255

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 139, 189, 315, 417, 619, 695, 945, 973, 1251, 1857, 2085, 2919, 3095, 3753, 4333, 4865, 5571, 6255, 8757, 9285, 12999, 14595, 16713, 18765, 21665, 26271, 27855, 38997, 43785, 64995, 83565, 86041, 116991, 131355, 194985, 258123, 430205, 584955, 602287, 774369, 1290615, 1806861, 2323107, 3011435, 3871845, 5420583, 9034305, 11615535, 16261749, 27102915, 81308745]

約数ペア:

[(1, 81308745), (3, 27102915), (5, 16261749), (7, 11615535), (9, 9034305), (15, 5420583), (21, 3871845), (27, 3011435), (35, 2323107), (45, 1806861), (63, 1290615), (105, 774369), (135, 602287), (139, 584955), (189, 430205), (315, 258123), (417, 194985), (619, 131355), (695, 116991), (945, 86041), (973, 83565), (1251, 64995), (1857, 43785), (2085, 38997), (2919, 27855), (3095, 26271), (3753, 21665), (4333, 18765), (4865, 16713), (5571, 14595), (6255, 12999), (8757, 9285)]