20565118535

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1\times {\mathrm{1789}}^1$

素因数の和:2028

約数の個数: 64

約数和(自身を含む): 28710339840

約数和(自身を除く): 8145221305

約数列:

[1, 5, 13, 17, 65, 85, 101, 103, 221, 505, 515, 1105, 1313, 1339, 1717, 1751, 1789, 6565, 6695, 8585, 8755, 8945, 10403, 22321, 22763, 23257, 30413, 52015, 111605, 113815, 116285, 135239, 152065, 176851, 180689, 184267, 395369, 676195, 884255, 903445, 921335, 1976845, 2299063, 2348957, 2395471, 3071713, 3132539, 11495315, 11744785, 11977355, 15358565, 15662695, 18610967, 39932269, 40723007, 93054835, 199661345, 203615035, 241942571, 316386439, 1209712855, 1581932195, 4113023707, 20565118535]

約数ペア:

[(1, 20565118535), (5, 4113023707), (13, 1581932195), (17, 1209712855), (65, 316386439), (85, 241942571), (101, 203615035), (103, 199661345), (221, 93054835), (505, 40723007), (515, 39932269), (1105, 18610967), (1313, 15662695), (1339, 15358565), (1717, 11977355), (1751, 11744785), (1789, 11495315), (6565, 3132539), (6695, 3071713), (8585, 2395471), (8755, 2348957), (8945, 2299063), (10403, 1976845), (22321, 921335), (22763, 903445), (23257, 884255), (30413, 676195), (52015, 395369), (111605, 184267), (113815, 180689), (116285, 176851), (135239, 152065)]