28109380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1481}}^1$

素因数の和:1576

約数の個数: 48

約数和(自身を含む): 64484784

約数和(自身を除く): 36375404

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 73, 130, 146, 260, 292, 365, 730, 949, 1460, 1481, 1898, 2962, 3796, 4745, 5924, 7405, 9490, 14810, 18980, 19253, 29620, 38506, 77012, 96265, 108113, 192530, 216226, 385060, 432452, 540565, 1081130, 1405469, 2162260, 2810938, 5621876, 7027345, 14054690, 28109380]

約数ペア:

[(1, 28109380), (2, 14054690), (4, 7027345), (5, 5621876), (10, 2810938), (13, 2162260), (20, 1405469), (26, 1081130), (52, 540565), (65, 432452), (73, 385060), (130, 216226), (146, 192530), (260, 108113), (292, 96265), (365, 77012), (730, 38506), (949, 29620), (1460, 19253), (1481, 18980), (1898, 14810), (2962, 9490), (3796, 7405), (4745, 5924)]