816922340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{101}}^1\times {\mathrm{2393}}^1$

素因数の和:2529

約数の個数: 72

約数和(自身を含む): 1876828968

約数和(自身を除く): 1059906628

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 101, 130, 169, 202, 260, 338, 404, 505, 676, 845, 1010, 1313, 1690, 2020, 2393, 2626, 3380, 4786, 5252, 6565, 9572, 11965, 13130, 17069, 23930, 26260, 31109, 34138, 47860, 62218, 68276, 85345, 124436, 155545, 170690, 241693, 311090, 341380, 404417, 483386, 622180, 808834, 966772, 1208465, 1617668, 2022085, 2416930, 3142009, 4044170, 4833860, 6284018, 8088340, 12568036, 15710045, 31420090, 40846117, 62840180, 81692234, 163384468, 204230585, 408461170, 816922340]

約数ペア:

[(1, 816922340), (2, 408461170), (4, 204230585), (5, 163384468), (10, 81692234), (13, 62840180), (20, 40846117), (26, 31420090), (52, 15710045), (65, 12568036), (101, 8088340), (130, 6284018), (169, 4833860), (202, 4044170), (260, 3142009), (338, 2416930), (404, 2022085), (505, 1617668), (676, 1208465), (845, 966772), (1010, 808834), (1313, 622180), (1690, 483386), (2020, 404417), (2393, 341380), (2626, 311090), (3380, 241693), (4786, 170690), (5252, 155545), (6565, 124436), (9572, 85345), (11965, 68276), (13130, 62218), (17069, 47860), (23930, 34138), (26260, 31109)]