1889889990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{63697}}^1$

素因数の和:63773

約数の個数: 64

約数和(自身を含む): 4843086336

約数和(自身を除く): 2953196346

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 43, 46, 69, 86, 115, 129, 138, 215, 230, 258, 345, 430, 645, 690, 989, 1290, 1978, 2967, 4945, 5934, 9890, 14835, 29670, 63697, 127394, 191091, 318485, 382182, 636970, 955455, 1465031, 1910910, 2738971, 2930062, 4395093, 5477942, 7325155, 8216913, 8790186, 13694855, 14650310, 16433826, 21975465, 27389710, 41084565, 43950930, 62996333, 82169130, 125992666, 188988999, 314981665, 377977998, 629963330, 944944995, 1889889990]

約数ペア:

[(1, 1889889990), (2, 944944995), (3, 629963330), (5, 377977998), (6, 314981665), (10, 188988999), (15, 125992666), (23, 82169130), (30, 62996333), (43, 43950930), (46, 41084565), (69, 27389710), (86, 21975465), (115, 16433826), (129, 14650310), (138, 13694855), (215, 8790186), (230, 8216913), (258, 7325155), (345, 5477942), (430, 4395093), (645, 2930062), (690, 2738971), (989, 1910910), (1290, 1465031), (1978, 955455), (2967, 636970), (4945, 382182), (5934, 318485), (9890, 191091), (14835, 127394), (29670, 63697)]