278320660

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{569}}^1\times {\mathrm{661}}^1$

素因数の和:1276

約数の個数: 48

約数和(自身を含む): 602234640

約数和(自身を除く): 323913980

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 569, 661, 740, 1138, 1322, 2276, 2644, 2845, 3305, 5690, 6610, 11380, 13220, 21053, 24457, 42106, 48914, 84212, 97828, 105265, 122285, 210530, 244570, 376109, 421060, 489140, 752218, 1504436, 1880545, 3761090, 7522180, 13916033, 27832066, 55664132, 69580165, 139160330, 278320660]

約数ペア:

[(1, 278320660), (2, 139160330), (4, 69580165), (5, 55664132), (10, 27832066), (20, 13916033), (37, 7522180), (74, 3761090), (148, 1880545), (185, 1504436), (370, 752218), (569, 489140), (661, 421060), (740, 376109), (1138, 244570), (1322, 210530), (2276, 122285), (2644, 105265), (2845, 97828), (3305, 84212), (5690, 48914), (6610, 42106), (11380, 24457), (13220, 21053)]