64139890

素因数分解:

$2^1\times 5^1\times {\mathrm{1091}}^1\times {\mathrm{5879}}^1$

素因数の和:6977

約数の個数: 16

約数和(自身を含む): 115577280

約数和(自身を除く): 51437390

約数列:

[1, 2, 5, 10, 1091, 2182, 5455, 5879, 10910, 11758, 29395, 58790, 6413989, 12827978, 32069945, 64139890]

約数ペア:

[(1, 64139890), (2, 32069945), (5, 12827978), (10, 6413989), (1091, 58790), (2182, 29395), (5455, 11758), (5879, 10910)]