257996988

素因数分解:

$2^2\times 3^5\times {\mathrm{433}}^1\times {\mathrm{613}}^1$

素因数の和:1065

約数の個数: 72

約数和(自身を含む): 678980848

約数和(自身を除く): 420983860

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 433, 486, 613, 866, 972, 1226, 1299, 1732, 1839, 2452, 2598, 3678, 3897, 5196, 5517, 7356, 7794, 11034, 11691, 15588, 16551, 22068, 23382, 33102, 35073, 46764, 49653, 66204, 70146, 99306, 105219, 140292, 148959, 198612, 210438, 265429, 297918, 420876, 530858, 595836, 796287, 1061716, 1592574, 2388861, 3185148, 4777722, 7166583, 9555444, 14333166, 21499749, 28666332, 42999498, 64499247, 85998996, 128998494, 257996988]

約数ペア:

[(1, 257996988), (2, 128998494), (3, 85998996), (4, 64499247), (6, 42999498), (9, 28666332), (12, 21499749), (18, 14333166), (27, 9555444), (36, 7166583), (54, 4777722), (81, 3185148), (108, 2388861), (162, 1592574), (243, 1061716), (324, 796287), (433, 595836), (486, 530858), (613, 420876), (866, 297918), (972, 265429), (1226, 210438), (1299, 198612), (1732, 148959), (1839, 140292), (2452, 105219), (2598, 99306), (3678, 70146), (3897, 66204), (5196, 49653), (5517, 46764), (7356, 35073), (7794, 33102), (11034, 23382), (11691, 22068), (15588, 16551)]