51123280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{49157}}^1$

素因数の和:49183

約数の個数: 40

約数和(自身を含む): 128007432

約数和(自身を除く): 76884152

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 49157, 98314, 196628, 245785, 393256, 491570, 639041, 786512, 983140, 1278082, 1966280, 2556164, 3195205, 3932560, 5112328, 6390410, 10224656, 12780820, 25561640, 51123280]

約数ペア:

[(1, 51123280), (2, 25561640), (4, 12780820), (5, 10224656), (8, 6390410), (10, 5112328), (13, 3932560), (16, 3195205), (20, 2556164), (26, 1966280), (40, 1278082), (52, 983140), (65, 786512), (80, 639041), (104, 491570), (130, 393256), (208, 245785), (260, 196628), (520, 98314), (1040, 49157)]