2635780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{281}}^1$

素因数の和:364

約数の個数: 48

約数和(自身を含む): 6443136

約数和(自身を除く): 3807356

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 67, 70, 134, 140, 268, 281, 335, 469, 562, 670, 938, 1124, 1340, 1405, 1876, 1967, 2345, 2810, 3934, 4690, 5620, 7868, 9380, 9835, 18827, 19670, 37654, 39340, 75308, 94135, 131789, 188270, 263578, 376540, 527156, 658945, 1317890, 2635780]

約数ペア:

[(1, 2635780), (2, 1317890), (4, 658945), (5, 527156), (7, 376540), (10, 263578), (14, 188270), (20, 131789), (28, 94135), (35, 75308), (67, 39340), (70, 37654), (134, 19670), (140, 18827), (268, 9835), (281, 9380), (335, 7868), (469, 5620), (562, 4690), (670, 3934), (938, 2810), (1124, 2345), (1340, 1967), (1405, 1876)]