128000240

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{51613}}^1$

素因数の和:51657

約数の個数: 40

約数和(自身を含む): 307206528

約数和(自身を除く): 179206288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 51613, 103226, 206452, 258065, 412904, 516130, 825808, 1032260, 1600003, 2064520, 3200006, 4129040, 6400012, 8000015, 12800024, 16000030, 25600048, 32000060, 64000120, 128000240]

約数ペア:

[(1, 128000240), (2, 64000120), (4, 32000060), (5, 25600048), (8, 16000030), (10, 12800024), (16, 8000015), (20, 6400012), (31, 4129040), (40, 3200006), (62, 2064520), (80, 1600003), (124, 1032260), (155, 825808), (248, 516130), (310, 412904), (496, 258065), (620, 206452), (1240, 103226), (2480, 51613)]