205301915

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{883}}^1$

素因数の和:988

約数の個数: 48

約数和(自身を含む): 313211808

約数和(自身を除く): 107909893

約数列:

[1, 5, 7, 13, 35, 49, 65, 73, 91, 245, 365, 455, 511, 637, 883, 949, 2555, 3185, 3577, 4415, 4745, 6181, 6643, 11479, 17885, 30905, 33215, 43267, 46501, 57395, 64459, 80353, 216335, 232505, 322295, 401765, 451213, 562471, 837967, 2256065, 2812355, 3158491, 4189835, 5865769, 15792455, 29328845, 41060383, 205301915]

約数ペア:

[(1, 205301915), (5, 41060383), (7, 29328845), (13, 15792455), (35, 5865769), (49, 4189835), (65, 3158491), (73, 2812355), (91, 2256065), (245, 837967), (365, 562471), (455, 451213), (511, 401765), (637, 322295), (883, 232505), (949, 216335), (2555, 80353), (3185, 64459), (3577, 57395), (4415, 46501), (4745, 43267), (6181, 33215), (6643, 30905), (11479, 17885)]