20042770

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:211

約数の個数: 64

約数和(自身を含む): 41783040

約数和(自身を除く): 21740270

約数列:

[1, 2, 5, 10, 11, 22, 29, 55, 58, 61, 103, 110, 122, 145, 206, 290, 305, 319, 515, 610, 638, 671, 1030, 1133, 1342, 1595, 1769, 2266, 2987, 3190, 3355, 3538, 5665, 5974, 6283, 6710, 8845, 11330, 12566, 14935, 17690, 19459, 29870, 31415, 32857, 38918, 62830, 65714, 69113, 97295, 138226, 164285, 182207, 194590, 328570, 345565, 364414, 691130, 911035, 1822070, 2004277, 4008554, 10021385, 20042770]

約数ペア:

[(1, 20042770), (2, 10021385), (5, 4008554), (10, 2004277), (11, 1822070), (22, 911035), (29, 691130), (55, 364414), (58, 345565), (61, 328570), (103, 194590), (110, 182207), (122, 164285), (145, 138226), (206, 97295), (290, 69113), (305, 65714), (319, 62830), (515, 38918), (610, 32857), (638, 31415), (671, 29870), (1030, 19459), (1133, 17690), (1342, 14935), (1595, 12566), (1769, 11330), (2266, 8845), (2987, 6710), (3190, 6283), (3355, 5974), (3538, 5665)]