20178076780

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1061}}^1\times {\mathrm{6841}}^1$

素因数の和:8050

約数の個数: 48

約数和(自身を含む): 42725279520

約数和(自身を除く): 22547202740

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1061, 1390, 2122, 2780, 4244, 5305, 6841, 10610, 13682, 21220, 27364, 34205, 68410, 136820, 147479, 294958, 589916, 737395, 950899, 1474790, 1901798, 2949580, 3803596, 4754495, 7258301, 9508990, 14516602, 19017980, 29033204, 36291505, 72583010, 145166020, 1008903839, 2017807678, 4035615356, 5044519195, 10089038390, 20178076780]

約数ペア:

[(1, 20178076780), (2, 10089038390), (4, 5044519195), (5, 4035615356), (10, 2017807678), (20, 1008903839), (139, 145166020), (278, 72583010), (556, 36291505), (695, 29033204), (1061, 19017980), (1390, 14516602), (2122, 9508990), (2780, 7258301), (4244, 4754495), (5305, 3803596), (6841, 2949580), (10610, 1901798), (13682, 1474790), (21220, 950899), (27364, 737395), (34205, 589916), (68410, 294958), (136820, 147479)]