820121918

素因数分解:

$2^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{433}}^1$

素因数の和:718

約数の個数: 64

約数和(自身を含む): 1574899200

約数和(自身を除く): 754777282

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 154, 251, 343, 433, 502, 539, 686, 866, 1078, 1757, 2761, 3031, 3514, 3773, 4763, 5522, 6062, 7546, 9526, 12299, 19327, 21217, 24598, 33341, 38654, 42434, 66682, 86093, 108683, 135289, 148519, 172186, 217366, 233387, 270578, 297038, 466774, 760781, 947023, 1195513, 1521562, 1633709, 1894046, 2391026, 3267418, 5325467, 8368591, 10650934, 16737182, 37278269, 58580137, 74556538, 117160274, 410060959, 820121918]

約数ペア:

[(1, 820121918), (2, 410060959), (7, 117160274), (11, 74556538), (14, 58580137), (22, 37278269), (49, 16737182), (77, 10650934), (98, 8368591), (154, 5325467), (251, 3267418), (343, 2391026), (433, 1894046), (502, 1633709), (539, 1521562), (686, 1195513), (866, 947023), (1078, 760781), (1757, 466774), (2761, 297038), (3031, 270578), (3514, 233387), (3773, 217366), (4763, 172186), (5522, 148519), (6062, 135289), (7546, 108683), (9526, 86093), (12299, 66682), (19327, 42434), (21217, 38654), (24598, 33341)]