18520288

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{367}}^1$

素因数の和:479

約数の個数: 48

約数和(自身を含む): 38949120

約数和(自身を除く): 20428832

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 83, 152, 166, 304, 332, 367, 608, 664, 734, 1328, 1468, 1577, 2656, 2936, 3154, 5872, 6308, 6973, 11744, 12616, 13946, 25232, 27892, 30461, 50464, 55784, 60922, 111568, 121844, 223136, 243688, 487376, 578759, 974752, 1157518, 2315036, 4630072, 9260144, 18520288]

約数ペア:

[(1, 18520288), (2, 9260144), (4, 4630072), (8, 2315036), (16, 1157518), (19, 974752), (32, 578759), (38, 487376), (76, 243688), (83, 223136), (152, 121844), (166, 111568), (304, 60922), (332, 55784), (367, 50464), (608, 30461), (664, 27892), (734, 25232), (1328, 13946), (1468, 12616), (1577, 11744), (2656, 6973), (2936, 6308), (3154, 5872)]