27840428

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{349}}^1$

素因数の和:415

約数の個数: 72

約数和(自身を含む): 63680400

約数和(自身を除く): 35839972

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 37, 44, 49, 74, 77, 98, 148, 154, 196, 259, 308, 349, 407, 518, 539, 698, 814, 1036, 1078, 1396, 1628, 1813, 2156, 2443, 2849, 3626, 3839, 4886, 5698, 7252, 7678, 9772, 11396, 12913, 15356, 17101, 19943, 25826, 26873, 34202, 39886, 51652, 53746, 68404, 79772, 90391, 107492, 142043, 180782, 188111, 284086, 361564, 376222, 568172, 632737, 752444, 994301, 1265474, 1988602, 2530948, 3977204, 6960107, 13920214, 27840428]

約数ペア:

[(1, 27840428), (2, 13920214), (4, 6960107), (7, 3977204), (11, 2530948), (14, 1988602), (22, 1265474), (28, 994301), (37, 752444), (44, 632737), (49, 568172), (74, 376222), (77, 361564), (98, 284086), (148, 188111), (154, 180782), (196, 142043), (259, 107492), (308, 90391), (349, 79772), (407, 68404), (518, 53746), (539, 51652), (698, 39886), (814, 34202), (1036, 26873), (1078, 25826), (1396, 19943), (1628, 17101), (1813, 15356), (2156, 12913), (2443, 11396), (2849, 9772), (3626, 7678), (3839, 7252), (4886, 5698)]