18055940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{128971}}^1$

素因数の和:128987

約数の個数: 24

約数和(自身を含む): 43334592

約数和(自身を除く): 25278652

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 128971, 257942, 515884, 644855, 902797, 1289710, 1805594, 2579420, 3611188, 4513985, 9027970, 18055940]

約数ペア:

[(1, 18055940), (2, 9027970), (4, 4513985), (5, 3611188), (7, 2579420), (10, 1805594), (14, 1289710), (20, 902797), (28, 644855), (35, 515884), (70, 257942), (140, 128971)]