81896512

素因数分解:

$2^6\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{269}}^1$

素因数の和:419

約数の個数: 56

約数和(自身を含む): 167883840

約数和(自身を除く): 85987328

約数列:

[1, 2, 4, 8, 16, 32, 64, 67, 71, 134, 142, 268, 269, 284, 536, 538, 568, 1072, 1076, 1136, 2144, 2152, 2272, 4288, 4304, 4544, 4757, 8608, 9514, 17216, 18023, 19028, 19099, 36046, 38056, 38198, 72092, 76112, 76396, 144184, 152224, 152792, 288368, 304448, 305584, 576736, 611168, 1153472, 1222336, 1279633, 2559266, 5118532, 10237064, 20474128, 40948256, 81896512]

約数ペア:

[(1, 81896512), (2, 40948256), (4, 20474128), (8, 10237064), (16, 5118532), (32, 2559266), (64, 1279633), (67, 1222336), (71, 1153472), (134, 611168), (142, 576736), (268, 305584), (269, 304448), (284, 288368), (536, 152792), (538, 152224), (568, 144184), (1072, 76396), (1076, 76112), (1136, 72092), (2144, 38198), (2152, 38056), (2272, 36046), (4288, 19099), (4304, 19028), (4544, 18023), (4757, 17216), (8608, 9514)]