28178826

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{269}}^1$

素因数の和:383

約数の個数: 64

約数和(自身を含む): 65318400

約数和(自身を除く): 37139574

約数列:

[1, 2, 3, 6, 13, 17, 26, 34, 39, 51, 78, 79, 102, 158, 221, 237, 269, 442, 474, 538, 663, 807, 1027, 1326, 1343, 1614, 2054, 2686, 3081, 3497, 4029, 4573, 6162, 6994, 8058, 9146, 10491, 13719, 17459, 20982, 21251, 27438, 34918, 42502, 52377, 59449, 63753, 104754, 118898, 127506, 178347, 276263, 356694, 361267, 552526, 722534, 828789, 1083801, 1657578, 2167602, 4696471, 9392942, 14089413, 28178826]

約数ペア:

[(1, 28178826), (2, 14089413), (3, 9392942), (6, 4696471), (13, 2167602), (17, 1657578), (26, 1083801), (34, 828789), (39, 722534), (51, 552526), (78, 361267), (79, 356694), (102, 276263), (158, 178347), (221, 127506), (237, 118898), (269, 104754), (442, 63753), (474, 59449), (538, 52377), (663, 42502), (807, 34918), (1027, 27438), (1326, 21251), (1343, 20982), (1614, 17459), (2054, 13719), (2686, 10491), (3081, 9146), (3497, 8058), (4029, 6994), (4573, 6162)]