81865756

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{4159}}^1$

素因数の和:4226

約数の個数: 48

約数和(自身を含む): 177049600

約数和(自身を除く): 95183844

約数列:

[1, 2, 4, 7, 14, 19, 28, 37, 38, 74, 76, 133, 148, 259, 266, 518, 532, 703, 1036, 1406, 2812, 4159, 4921, 8318, 9842, 16636, 19684, 29113, 58226, 79021, 116452, 153883, 158042, 307766, 316084, 553147, 615532, 1077181, 1106294, 2154362, 2212588, 2923777, 4308724, 5847554, 11695108, 20466439, 40932878, 81865756]

約数ペア:

[(1, 81865756), (2, 40932878), (4, 20466439), (7, 11695108), (14, 5847554), (19, 4308724), (28, 2923777), (37, 2212588), (38, 2154362), (74, 1106294), (76, 1077181), (133, 615532), (148, 553147), (259, 316084), (266, 307766), (518, 158042), (532, 153883), (703, 116452), (1036, 79021), (1406, 58226), (2812, 29113), (4159, 19684), (4921, 16636), (8318, 9842)]