291236180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{45083}}^1$

素因数の和:45128

約数の個数: 48

約数和(自身を含む): 681670080

約数和(自身を除く): 390433900

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 380, 646, 1292, 1615, 3230, 6460, 45083, 90166, 180332, 225415, 450830, 766411, 856577, 901660, 1532822, 1713154, 3065644, 3426308, 3832055, 4282885, 7664110, 8565770, 14561809, 15328220, 17131540, 29123618, 58247236, 72809045, 145618090, 291236180]

約数ペア:

[(1, 291236180), (2, 145618090), (4, 72809045), (5, 58247236), (10, 29123618), (17, 17131540), (19, 15328220), (20, 14561809), (34, 8565770), (38, 7664110), (68, 4282885), (76, 3832055), (85, 3426308), (95, 3065644), (170, 1713154), (190, 1532822), (323, 901660), (340, 856577), (380, 766411), (646, 450830), (1292, 225415), (1615, 180332), (3230, 90166), (6460, 45083)]