20517910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{15427}}^1$

素因数の和:15460

約数の個数: 32

約数和(自身を含む): 44432640

約数和(自身を除く): 23914730

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665, 1330, 15427, 30854, 77135, 107989, 154270, 215978, 293113, 539945, 586226, 1079890, 1465565, 2051791, 2931130, 4103582, 10258955, 20517910]

約数ペア:

[(1, 20517910), (2, 10258955), (5, 4103582), (7, 2931130), (10, 2051791), (14, 1465565), (19, 1079890), (35, 586226), (38, 539945), (70, 293113), (95, 215978), (133, 154270), (190, 107989), (266, 77135), (665, 30854), (1330, 15427)]