261801930

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{671287}}^1$

素因数の和:671310

約数の個数: 32

約数和(自身を含む): 676658304

約数和(自身を除く): 414856374

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 671287, 1342574, 2013861, 3356435, 4027722, 6712870, 8726731, 10069305, 17453462, 20138610, 26180193, 43633655, 52360386, 87267310, 130900965, 261801930]

約数ペア:

[(1, 261801930), (2, 130900965), (3, 87267310), (5, 52360386), (6, 43633655), (10, 26180193), (13, 20138610), (15, 17453462), (26, 10069305), (30, 8726731), (39, 6712870), (65, 4027722), (78, 3356435), (130, 2013861), (195, 1342574), (390, 671287)]