18831208

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:250

約数の個数: 64

約数和(自身を含む): 40953600

約数和(自身を除く): 22122392

約数列:

[1, 2, 4, 8, 11, 22, 29, 44, 47, 58, 88, 94, 116, 157, 188, 232, 314, 319, 376, 517, 628, 638, 1034, 1256, 1276, 1363, 1727, 2068, 2552, 2726, 3454, 4136, 4553, 5452, 6908, 7379, 9106, 10904, 13816, 14758, 14993, 18212, 29516, 29986, 36424, 50083, 59032, 59972, 81169, 100166, 119944, 162338, 200332, 213991, 324676, 400664, 427982, 649352, 855964, 1711928, 2353901, 4707802, 9415604, 18831208]

約数ペア:

[(1, 18831208), (2, 9415604), (4, 4707802), (8, 2353901), (11, 1711928), (22, 855964), (29, 649352), (44, 427982), (47, 400664), (58, 324676), (88, 213991), (94, 200332), (116, 162338), (157, 119944), (188, 100166), (232, 81169), (314, 59972), (319, 59032), (376, 50083), (517, 36424), (628, 29986), (638, 29516), (1034, 18212), (1256, 14993), (1276, 14758), (1363, 13816), (1727, 10904), (2068, 9106), (2552, 7379), (2726, 6908), (3454, 5452), (4136, 4553)]