64000120

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{51613}}^1$

素因数の和:51655

約数の個数: 32

約数和(自身を含む): 148648320

約数和(自身を除く): 84648200

約数列:

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

約数ペア:

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