202301990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:389

約数の個数: 64

約数和(自身を含む): 407151360

約数和(自身を除く): 204849370

約数列:

[1, 2, 5, 10, 11, 22, 55, 101, 110, 131, 139, 202, 262, 278, 505, 655, 695, 1010, 1111, 1310, 1390, 1441, 1529, 2222, 2882, 3058, 5555, 7205, 7645, 11110, 13231, 14039, 14410, 15290, 18209, 26462, 28078, 36418, 66155, 70195, 91045, 132310, 140390, 145541, 154429, 182090, 200299, 291082, 308858, 400598, 727705, 772145, 1001495, 1455410, 1544290, 1839109, 2002990, 3678218, 9195545, 18391090, 20230199, 40460398, 101150995, 202301990]

約数ペア:

[(1, 202301990), (2, 101150995), (5, 40460398), (10, 20230199), (11, 18391090), (22, 9195545), (55, 3678218), (101, 2002990), (110, 1839109), (131, 1544290), (139, 1455410), (202, 1001495), (262, 772145), (278, 727705), (505, 400598), (655, 308858), (695, 291082), (1010, 200299), (1111, 182090), (1310, 154429), (1390, 145541), (1441, 140390), (1529, 132310), (2222, 91045), (2882, 70195), (3058, 66155), (5555, 36418), (7205, 28078), (7645, 26462), (11110, 18209), (13231, 15290), (14039, 14410)]