639231832

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{907}}^1\times {\mathrm{2381}}^1$

素因数の和:3331

約数の個数: 32

約数和(自身を含む): 1232827920

約数和(自身を除く): 593596088

約数列:

[1, 2, 4, 8, 37, 74, 148, 296, 907, 1814, 2381, 3628, 4762, 7256, 9524, 19048, 33559, 67118, 88097, 134236, 176194, 268472, 352388, 704776, 2159567, 4319134, 8638268, 17276536, 79903979, 159807958, 319615916, 639231832]

約数ペア:

[(1, 639231832), (2, 319615916), (4, 159807958), (8, 79903979), (37, 17276536), (74, 8638268), (148, 4319134), (296, 2159567), (907, 704776), (1814, 352388), (2381, 268472), (3628, 176194), (4762, 134236), (7256, 88097), (9524, 67118), (19048, 33559)]