64191640

素因数分解:

$2^3\times 5^1\times {\mathrm{281}}^1\times {\mathrm{5711}}^1$

素因数の和:6003

約数の個数: 32

約数和(自身を含む): 144970560

約数和(自身を除く): 80778920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 281, 562, 1124, 1405, 2248, 2810, 5620, 5711, 11240, 11422, 22844, 28555, 45688, 57110, 114220, 228440, 1604791, 3209582, 6419164, 8023955, 12838328, 16047910, 32095820, 64191640]

約数ペア:

[(1, 64191640), (2, 32095820), (4, 16047910), (5, 12838328), (8, 8023955), (10, 6419164), (20, 3209582), (40, 1604791), (281, 228440), (562, 114220), (1124, 57110), (1405, 45688), (2248, 28555), (2810, 22844), (5620, 11422), (5711, 11240)]