89397520

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{15739}}^1$

素因数の和:15823

約数の個数: 40

約数和(自身を含む): 210790080

約数和(自身を除く): 121392560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 15739, 31478, 62956, 78695, 125912, 157390, 251824, 314780, 629560, 1117469, 1259120, 2234938, 4469876, 5587345, 8939752, 11174690, 17879504, 22349380, 44698760, 89397520]

約数ペア:

[(1, 89397520), (2, 44698760), (4, 22349380), (5, 17879504), (8, 11174690), (10, 8939752), (16, 5587345), (20, 4469876), (40, 2234938), (71, 1259120), (80, 1117469), (142, 629560), (284, 314780), (355, 251824), (568, 157390), (710, 125912), (1136, 78695), (1420, 62956), (2840, 31478), (5680, 15739)]