261269855

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1$

素因数の和:261

約数の個数: 96

約数和(自身を含む): 441262080

約数和(自身を除く): 179992225

約数列:

[1, 5, 7, 11, 17, 19, 35, 55, 77, 85, 95, 119, 121, 133, 187, 191, 209, 323, 385, 595, 605, 665, 847, 935, 955, 1045, 1309, 1337, 1463, 1615, 2057, 2101, 2261, 2299, 3247, 3553, 3629, 4235, 6545, 6685, 7315, 10285, 10505, 11305, 11495, 14399, 14707, 16093, 16235, 17765, 18145, 22729, 23111, 24871, 25403, 35717, 39083, 39919, 61693, 71995, 73535, 80465, 113645, 115555, 124355, 127015, 161777, 178585, 195415, 199595, 250019, 273581, 279433, 308465, 392887, 431851, 439109, 678623, 808885, 1250095, 1367905, 1397165, 1964435, 2159255, 2195545, 2750209, 3073763, 3393115, 4750361, 7464853, 13751045, 15368815, 23751805, 37324265, 52253971, 261269855]

約数ペア:

[(1, 261269855), (5, 52253971), (7, 37324265), (11, 23751805), (17, 15368815), (19, 13751045), (35, 7464853), (55, 4750361), (77, 3393115), (85, 3073763), (95, 2750209), (119, 2195545), (121, 2159255), (133, 1964435), (187, 1397165), (191, 1367905), (209, 1250095), (323, 808885), (385, 678623), (595, 439109), (605, 431851), (665, 392887), (847, 308465), (935, 279433), (955, 273581), (1045, 250019), (1309, 199595), (1337, 195415), (1463, 178585), (1615, 161777), (2057, 127015), (2101, 124355), (2261, 115555), (2299, 113645), (3247, 80465), (3553, 73535), (3629, 71995), (4235, 61693), (6545, 39919), (6685, 39083), (7315, 35717), (10285, 25403), (10505, 24871), (11305, 23111), (11495, 22729), (14399, 18145), (14707, 17765), (16093, 16235)]