619967740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{643}}^1$

素因数の和:827

約数の個数: 96

約数和(自身を含む): 1526805504

約数和(自身を除く): 906837764

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 97, 140, 142, 194, 284, 355, 388, 485, 497, 643, 679, 710, 970, 994, 1286, 1358, 1420, 1940, 1988, 2485, 2572, 2716, 3215, 3395, 4501, 4970, 6430, 6790, 6887, 9002, 9940, 12860, 13580, 13774, 18004, 22505, 27548, 34435, 45010, 45653, 48209, 62371, 68870, 90020, 91306, 96418, 124742, 137740, 182612, 192836, 228265, 241045, 249484, 311855, 319571, 436597, 456530, 482090, 623710, 639142, 873194, 913060, 964180, 1247420, 1278284, 1597855, 1746388, 2182985, 3195710, 4365970, 4428341, 6391420, 8731940, 8856682, 17713364, 22141705, 30998387, 44283410, 61996774, 88566820, 123993548, 154991935, 309983870, 619967740]

約数ペア:

[(1, 619967740), (2, 309983870), (4, 154991935), (5, 123993548), (7, 88566820), (10, 61996774), (14, 44283410), (20, 30998387), (28, 22141705), (35, 17713364), (70, 8856682), (71, 8731940), (97, 6391420), (140, 4428341), (142, 4365970), (194, 3195710), (284, 2182985), (355, 1746388), (388, 1597855), (485, 1278284), (497, 1247420), (643, 964180), (679, 913060), (710, 873194), (970, 639142), (994, 623710), (1286, 482090), (1358, 456530), (1420, 436597), (1940, 319571), (1988, 311855), (2485, 249484), (2572, 241045), (2716, 228265), (3215, 192836), (3395, 182612), (4501, 137740), (4970, 124742), (6430, 96418), (6790, 91306), (6887, 90020), (9002, 68870), (9940, 62371), (12860, 48209), (13580, 45653), (13774, 45010), (18004, 34435), (22505, 27548)]