38943905

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1$

素因数の和:318

約数の個数: 64

約数和(自身を含む): 65028096

約数和(自身を除く): 26084191

約数列:

[1, 5, 7, 11, 13, 31, 35, 55, 65, 77, 91, 143, 155, 217, 251, 341, 385, 403, 455, 715, 1001, 1085, 1255, 1705, 1757, 2015, 2387, 2761, 2821, 3263, 4433, 5005, 7781, 8785, 11935, 13805, 14105, 16315, 19327, 22165, 22841, 31031, 35893, 38905, 54467, 85591, 96635, 101153, 114205, 155155, 179465, 251251, 272335, 427955, 505765, 599137, 708071, 1112683, 1256255, 2995685, 3540355, 5563415, 7788781, 38943905]

約数ペア:

[(1, 38943905), (5, 7788781), (7, 5563415), (11, 3540355), (13, 2995685), (31, 1256255), (35, 1112683), (55, 708071), (65, 599137), (77, 505765), (91, 427955), (143, 272335), (155, 251251), (217, 179465), (251, 155155), (341, 114205), (385, 101153), (403, 96635), (455, 85591), (715, 54467), (1001, 38905), (1085, 35893), (1255, 31031), (1705, 22841), (1757, 22165), (2015, 19327), (2387, 16315), (2761, 14105), (2821, 13805), (3263, 11935), (4433, 8785), (5005, 7781)]