18560465

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:198

約数の個数: 48

約数和(自身を含む): 28957824

約数和(自身を除く): 10397359

約数列:

[1, 5, 7, 11, 35, 49, 55, 71, 77, 97, 245, 355, 385, 485, 497, 539, 679, 781, 1067, 2485, 2695, 3395, 3479, 3905, 4753, 5335, 5467, 6887, 7469, 17395, 23765, 27335, 34435, 37345, 38269, 48209, 52283, 75757, 191345, 241045, 261415, 337463, 378785, 530299, 1687315, 2651495, 3712093, 18560465]

約数ペア:

[(1, 18560465), (5, 3712093), (7, 2651495), (11, 1687315), (35, 530299), (49, 378785), (55, 337463), (71, 261415), (77, 241045), (97, 191345), (245, 75757), (355, 52283), (385, 48209), (485, 38269), (497, 37345), (539, 34435), (679, 27335), (781, 23765), (1067, 17395), (2485, 7469), (2695, 6887), (3395, 5467), (3479, 5335), (3905, 4753)]