7777295980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{188861}}^1$

素因数の和:188970

約数の個数: 48

約数和(自身を含む): 17133560640

約数和(自身を除く): 9356264660

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 71, 116, 142, 145, 284, 290, 355, 580, 710, 1420, 2059, 4118, 8236, 10295, 20590, 41180, 188861, 377722, 755444, 944305, 1888610, 3777220, 5476969, 10953938, 13409131, 21907876, 26818262, 27384845, 53636524, 54769690, 67045655, 109539380, 134091310, 268182620, 388864799, 777729598, 1555459196, 1944323995, 3888647990, 7777295980]

約数ペア:

[(1, 7777295980), (2, 3888647990), (4, 1944323995), (5, 1555459196), (10, 777729598), (20, 388864799), (29, 268182620), (58, 134091310), (71, 109539380), (116, 67045655), (142, 54769690), (145, 53636524), (284, 27384845), (290, 26818262), (355, 21907876), (580, 13409131), (710, 10953938), (1420, 5476969), (2059, 3777220), (4118, 1888610), (8236, 944305), (10295, 755444), (20590, 377722), (41180, 188861)]