28697440

素因数分解:

$2^5\times 5^1\times {\mathrm{67}}^1\times {\mathrm{2677}}^1$

素因数の和:2759

約数の個数: 48

約数和(自身を含む): 68835312

約数和(自身を除く): 40137872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 67, 80, 134, 160, 268, 335, 536, 670, 1072, 1340, 2144, 2677, 2680, 5354, 5360, 10708, 10720, 13385, 21416, 26770, 42832, 53540, 85664, 107080, 179359, 214160, 358718, 428320, 717436, 896795, 1434872, 1793590, 2869744, 3587180, 5739488, 7174360, 14348720, 28697440]

約数ペア:

[(1, 28697440), (2, 14348720), (4, 7174360), (5, 5739488), (8, 3587180), (10, 2869744), (16, 1793590), (20, 1434872), (32, 896795), (40, 717436), (67, 428320), (80, 358718), (134, 214160), (160, 179359), (268, 107080), (335, 85664), (536, 53540), (670, 42832), (1072, 26770), (1340, 21416), (2144, 13385), (2677, 10720), (2680, 10708), (5354, 5360)]