127142840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{2861}}^1$

素因数の和:2984

約数の個数: 64

約数和(自身を含む): 315277920

約数和(自身を除く): 188135080

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 101, 110, 202, 220, 404, 440, 505, 808, 1010, 1111, 2020, 2222, 2861, 4040, 4444, 5555, 5722, 8888, 11110, 11444, 14305, 22220, 22888, 28610, 31471, 44440, 57220, 62942, 114440, 125884, 157355, 251768, 288961, 314710, 577922, 629420, 1155844, 1258840, 1444805, 2311688, 2889610, 3178571, 5779220, 6357142, 11558440, 12714284, 15892855, 25428568, 31785710, 63571420, 127142840]

約数ペア:

[(1, 127142840), (2, 63571420), (4, 31785710), (5, 25428568), (8, 15892855), (10, 12714284), (11, 11558440), (20, 6357142), (22, 5779220), (40, 3178571), (44, 2889610), (55, 2311688), (88, 1444805), (101, 1258840), (110, 1155844), (202, 629420), (220, 577922), (404, 314710), (440, 288961), (505, 251768), (808, 157355), (1010, 125884), (1111, 114440), (2020, 62942), (2222, 57220), (2861, 44440), (4040, 31471), (4444, 28610), (5555, 22888), (5722, 22220), (8888, 14305), (11110, 11444)]