51720520

素因数分解:

$2^3\times 5^1\times {\mathrm{151}}^1\times {\mathrm{8563}}^1$

素因数の和:8725

約数の個数: 32

約数和(自身を含む): 117155520

約数和(自身を除く): 65435000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 151, 302, 604, 755, 1208, 1510, 3020, 6040, 8563, 17126, 34252, 42815, 68504, 85630, 171260, 342520, 1293013, 2586026, 5172052, 6465065, 10344104, 12930130, 25860260, 51720520]

約数ペア:

[(1, 51720520), (2, 25860260), (4, 12930130), (5, 10344104), (8, 6465065), (10, 5172052), (20, 2586026), (40, 1293013), (151, 342520), (302, 171260), (604, 85630), (755, 68504), (1208, 42815), (1510, 34252), (3020, 17126), (6040, 8563)]