20123657872

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{1543}}^1\times {\mathrm{42901}}^1$

素因数の和:44471

約数の個数: 40

約数和(自身を含む): 41069226560

約数和(自身を除く): 20945568688

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 1543, 3086, 6172, 12344, 24688, 29317, 42901, 58634, 85802, 117268, 171604, 234536, 343208, 469072, 686416, 815119, 1630238, 3260476, 6520952, 13041904, 66196243, 132392486, 264784972, 529569944, 1059139888, 1257728617, 2515457234, 5030914468, 10061828936, 20123657872]

約数ペア:

[(1, 20123657872), (2, 10061828936), (4, 5030914468), (8, 2515457234), (16, 1257728617), (19, 1059139888), (38, 529569944), (76, 264784972), (152, 132392486), (304, 66196243), (1543, 13041904), (3086, 6520952), (6172, 3260476), (12344, 1630238), (24688, 815119), (29317, 686416), (42901, 469072), (58634, 343208), (85802, 234536), (117268, 171604)]