18123820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{6337}}^1$

素因数の和:6370

約数の個数: 48

約数和(自身を含む): 44720928

約数和(自身を除く): 26597108

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 6337, 12674, 25348, 31685, 63370, 69707, 82381, 126740, 139414, 164762, 278828, 329524, 348535, 411905, 697070, 823810, 906191, 1394140, 1647620, 1812382, 3624764, 4530955, 9061910, 18123820]

約数ペア:

[(1, 18123820), (2, 9061910), (4, 4530955), (5, 3624764), (10, 1812382), (11, 1647620), (13, 1394140), (20, 906191), (22, 823810), (26, 697070), (44, 411905), (52, 348535), (55, 329524), (65, 278828), (110, 164762), (130, 139414), (143, 126740), (220, 82381), (260, 69707), (286, 63370), (572, 31685), (715, 25348), (1430, 12674), (2860, 6337)]