261409876

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{55243}}^1$

素因数の和:55280

約数の個数: 36

約数和(自身を含む): 566140512

約数和(自身を除く): 304730636

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 169, 182, 338, 364, 676, 1183, 2366, 4732, 55243, 110486, 220972, 386701, 718159, 773402, 1436318, 1546804, 2872636, 5027113, 9336067, 10054226, 18672134, 20108452, 37344268, 65352469, 130704938, 261409876]

約数ペア:

[(1, 261409876), (2, 130704938), (4, 65352469), (7, 37344268), (13, 20108452), (14, 18672134), (26, 10054226), (28, 9336067), (52, 5027113), (91, 2872636), (169, 1546804), (182, 1436318), (338, 773402), (364, 718159), (676, 386701), (1183, 220972), (2366, 110486), (4732, 55243)]