28009540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{6337}}^1$

素因数の和:6376

約数の個数: 48

約数和(自身を含む): 67081392

約数和(自身を除く): 39071852

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 6337, 12674, 25348, 31685, 63370, 82381, 107729, 126740, 164762, 215458, 329524, 411905, 430916, 538645, 823810, 1077290, 1400477, 1647620, 2154580, 2800954, 5601908, 7002385, 14004770, 28009540]

約数ペア:

[(1, 28009540), (2, 14004770), (4, 7002385), (5, 5601908), (10, 2800954), (13, 2154580), (17, 1647620), (20, 1400477), (26, 1077290), (34, 823810), (52, 538645), (65, 430916), (68, 411905), (85, 329524), (130, 215458), (170, 164762), (221, 126740), (260, 107729), (340, 82381), (442, 63370), (884, 31685), (1105, 25348), (2210, 12674), (4420, 6337)]