261127510

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{2749}}^1$

素因数の和:2845

約数の個数: 64

約数和(自身を含む): 570240000

約数和(自身を除く): 309112490

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 59, 70, 115, 118, 161, 230, 295, 322, 413, 590, 805, 826, 1357, 1610, 2065, 2714, 2749, 4130, 5498, 6785, 9499, 13570, 13745, 18998, 19243, 27490, 38486, 47495, 63227, 94990, 96215, 126454, 162191, 192430, 316135, 324382, 442589, 632270, 810955, 885178, 1135337, 1621910, 2212945, 2270674, 3730393, 4425890, 5676685, 7460786, 11353370, 18651965, 26112751, 37303930, 52225502, 130563755, 261127510]

約数ペア:

[(1, 261127510), (2, 130563755), (5, 52225502), (7, 37303930), (10, 26112751), (14, 18651965), (23, 11353370), (35, 7460786), (46, 5676685), (59, 4425890), (70, 3730393), (115, 2270674), (118, 2212945), (161, 1621910), (230, 1135337), (295, 885178), (322, 810955), (413, 632270), (590, 442589), (805, 324382), (826, 316135), (1357, 192430), (1610, 162191), (2065, 126454), (2714, 96215), (2749, 94990), (4130, 63227), (5498, 47495), (6785, 38486), (9499, 27490), (13570, 19243), (13745, 18998)]