661978248

素因数分解:

$2^3\times 3^1\times {\mathrm{37}}^1\times {\mathrm{745471}}^1$

素因数の和:745517

約数の個数: 32

約数和(自身を含む): 1699676160

約数和(自身を除く): 1037697912

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 37, 74, 111, 148, 222, 296, 444, 888, 745471, 1490942, 2236413, 2981884, 4472826, 5963768, 8945652, 17891304, 27582427, 55164854, 82747281, 110329708, 165494562, 220659416, 330989124, 661978248]

約数ペア:

[(1, 661978248), (2, 330989124), (3, 220659416), (4, 165494562), (6, 110329708), (8, 82747281), (12, 55164854), (24, 27582427), (37, 17891304), (74, 8945652), (111, 5963768), (148, 4472826), (222, 2981884), (296, 2236413), (444, 1490942), (888, 745471)]