16858205

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:178

約数の個数: 48

約数和(自身を含む): 26046720

約数和(自身を除く): 9188515

約数列:

[1, 5, 7, 13, 35, 49, 65, 67, 79, 91, 245, 335, 395, 455, 469, 553, 637, 871, 1027, 2345, 2765, 3185, 3283, 3871, 4355, 5135, 5293, 6097, 7189, 16415, 19355, 26465, 30485, 35945, 37051, 42679, 50323, 68809, 185255, 213395, 251615, 259357, 344045, 481663, 1296785, 2408315, 3371641, 16858205]

約数ペア:

[(1, 16858205), (5, 3371641), (7, 2408315), (13, 1296785), (35, 481663), (49, 344045), (65, 259357), (67, 251615), (79, 213395), (91, 185255), (245, 68809), (335, 50323), (395, 42679), (455, 37051), (469, 35945), (553, 30485), (637, 26465), (871, 19355), (1027, 16415), (2345, 7189), (2765, 6097), (3185, 5293), (3283, 5135), (3871, 4355)]