261311856

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^2\times {\mathrm{32213}}^1$

素因数の和:32250

約数の個数: 60

約数和(自身を含む): 731000088

約数和(自身を除く): 469688232

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 169, 208, 312, 338, 507, 624, 676, 1014, 1352, 2028, 2704, 4056, 8112, 32213, 64426, 96639, 128852, 193278, 257704, 386556, 418769, 515408, 773112, 837538, 1256307, 1546224, 1675076, 2512614, 3350152, 5025228, 5443997, 6700304, 10050456, 10887994, 16331991, 20100912, 21775988, 32663982, 43551976, 65327964, 87103952, 130655928, 261311856]

約数ペア:

[(1, 261311856), (2, 130655928), (3, 87103952), (4, 65327964), (6, 43551976), (8, 32663982), (12, 21775988), (13, 20100912), (16, 16331991), (24, 10887994), (26, 10050456), (39, 6700304), (48, 5443997), (52, 5025228), (78, 3350152), (104, 2512614), (156, 1675076), (169, 1546224), (208, 1256307), (312, 837538), (338, 773112), (507, 515408), (624, 418769), (676, 386556), (1014, 257704), (1352, 193278), (2028, 128852), (2704, 96639), (4056, 64426), (8112, 32213)]