208657072

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{71}}^2\times {\mathrm{199}}^1$

素因数の和:362

約数の個数: 60

約数和(自身を含む): 443808400

約数和(自身を除く): 235151328

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 71, 104, 142, 199, 208, 284, 398, 568, 796, 923, 1136, 1592, 1846, 2587, 3184, 3692, 5041, 5174, 7384, 10082, 10348, 14129, 14768, 20164, 20696, 28258, 40328, 41392, 56516, 65533, 80656, 113032, 131066, 183677, 226064, 262132, 367354, 524264, 734708, 1003159, 1048528, 1469416, 2006318, 2938832, 4012636, 8025272, 13041067, 16050544, 26082134, 52164268, 104328536, 208657072]

約数ペア:

[(1, 208657072), (2, 104328536), (4, 52164268), (8, 26082134), (13, 16050544), (16, 13041067), (26, 8025272), (52, 4012636), (71, 2938832), (104, 2006318), (142, 1469416), (199, 1048528), (208, 1003159), (284, 734708), (398, 524264), (568, 367354), (796, 262132), (923, 226064), (1136, 183677), (1592, 131066), (1846, 113032), (2587, 80656), (3184, 65533), (3692, 56516), (5041, 41392), (5174, 40328), (7384, 28258), (10082, 20696), (10348, 20164), (14129, 14768)]