13289380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{647}}^1$

素因数の和:748

約数の個数: 48

約数和(自身を含む): 30481920

約数和(自身を除く): 17192540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 130, 158, 260, 316, 395, 647, 790, 1027, 1294, 1580, 2054, 2588, 3235, 4108, 5135, 6470, 8411, 10270, 12940, 16822, 20540, 33644, 42055, 51113, 84110, 102226, 168220, 204452, 255565, 511130, 664469, 1022260, 1328938, 2657876, 3322345, 6644690, 13289380]

約数ペア:

[(1, 13289380), (2, 6644690), (4, 3322345), (5, 2657876), (10, 1328938), (13, 1022260), (20, 664469), (26, 511130), (52, 255565), (65, 204452), (79, 168220), (130, 102226), (158, 84110), (260, 51113), (316, 42055), (395, 33644), (647, 20540), (790, 16822), (1027, 12940), (1294, 10270), (1580, 8411), (2054, 6470), (2588, 5135), (3235, 4108)]