65749372420

素因数分解:

$2^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{7488539}}^1$

素因数の和:7488987

約数の個数: 24

約数和(自身を含む): 138388219200

約数和(自身を除く): 72638846780

約数列:

[1, 2, 4, 5, 10, 20, 439, 878, 1756, 2195, 4390, 8780, 7488539, 14977078, 29954156, 37442695, 74885390, 149770780, 3287468621, 6574937242, 13149874484, 16437343105, 32874686210, 65749372420]

約数ペア:

[(1, 65749372420), (2, 32874686210), (4, 16437343105), (5, 13149874484), (10, 6574937242), (20, 3287468621), (439, 149770780), (878, 74885390), (1756, 37442695), (2195, 29954156), (4390, 14977078), (8780, 7488539)]