77868420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{185401}}^1$

素因数の和:185420

約数の個数: 48

約数和(自身を含む): 249180288

約数和(自身を除く): 171311868

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 185401, 370802, 556203, 741604, 927005, 1112406, 1297807, 1854010, 2224812, 2595614, 2781015, 3708020, 3893421, 5191228, 5562030, 6489035, 7786842, 11124060, 12978070, 15573684, 19467105, 25956140, 38934210, 77868420]

約数ペア:

[(1, 77868420), (2, 38934210), (3, 25956140), (4, 19467105), (5, 15573684), (6, 12978070), (7, 11124060), (10, 7786842), (12, 6489035), (14, 5562030), (15, 5191228), (20, 3893421), (21, 3708020), (28, 2781015), (30, 2595614), (35, 2224812), (42, 1854010), (60, 1297807), (70, 1112406), (84, 927005), (105, 741604), (140, 556203), (210, 370802), (420, 185401)]