20170893860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{244733}}^1$

素因数の和:245072

約数の個数: 48

約数和(自身を含む): 45761342256

約数和(自身を除く): 25590448396

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 317, 634, 1268, 1585, 3170, 4121, 6340, 8242, 16484, 20605, 41210, 82420, 244733, 489466, 978932, 1223665, 2447330, 3181529, 4894660, 6363058, 12726116, 15907645, 31815290, 63630580, 77580361, 155160722, 310321444, 387901805, 775803610, 1008544693, 1551607220, 2017089386, 4034178772, 5042723465, 10085446930, 20170893860]

約数ペア:

[(1, 20170893860), (2, 10085446930), (4, 5042723465), (5, 4034178772), (10, 2017089386), (13, 1551607220), (20, 1008544693), (26, 775803610), (52, 387901805), (65, 310321444), (130, 155160722), (260, 77580361), (317, 63630580), (634, 31815290), (1268, 15907645), (1585, 12726116), (3170, 6363058), (4121, 4894660), (6340, 3181529), (8242, 2447330), (16484, 1223665), (20605, 978932), (41210, 489466), (82420, 244733)]