2720122280

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{1129}}^1$

素因数の和:1267

約数の個数: 128

約数和(自身を含む): 6638976000

約数和(自身を除く): 3918853720

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 31, 40, 58, 62, 67, 116, 124, 134, 145, 155, 232, 248, 268, 290, 310, 335, 536, 580, 620, 670, 899, 1129, 1160, 1240, 1340, 1798, 1943, 2077, 2258, 2680, 3596, 3886, 4154, 4495, 4516, 5645, 7192, 7772, 8308, 8990, 9032, 9715, 10385, 11290, 15544, 16616, 17980, 19430, 20770, 22580, 32741, 34999, 35960, 38860, 41540, 45160, 60233, 65482, 69998, 75643, 77720, 83080, 120466, 130964, 139996, 151286, 163705, 174995, 240932, 261928, 279992, 301165, 302572, 327410, 349990, 378215, 481864, 602330, 605144, 654820, 699980, 756430, 1014971, 1204660, 1309640, 1399960, 1512860, 2029942, 2193647, 2344933, 2409320, 3025720, 4059884, 4387294, 4689866, 5074855, 8119768, 8774588, 9379732, 10149710, 10968235, 11724665, 17549176, 18759464, 20299420, 21936470, 23449330, 40598840, 43872940, 46898660, 68003057, 87745880, 93797320, 136006114, 272012228, 340015285, 544024456, 680030570, 1360061140, 2720122280]

約数ペア:

[(1, 2720122280), (2, 1360061140), (4, 680030570), (5, 544024456), (8, 340015285), (10, 272012228), (20, 136006114), (29, 93797320), (31, 87745880), (40, 68003057), (58, 46898660), (62, 43872940), (67, 40598840), (116, 23449330), (124, 21936470), (134, 20299420), (145, 18759464), (155, 17549176), (232, 11724665), (248, 10968235), (268, 10149710), (290, 9379732), (310, 8774588), (335, 8119768), (536, 5074855), (580, 4689866), (620, 4387294), (670, 4059884), (899, 3025720), (1129, 2409320), (1160, 2344933), (1240, 2193647), (1340, 2029942), (1798, 1512860), (1943, 1399960), (2077, 1309640), (2258, 1204660), (2680, 1014971), (3596, 756430), (3886, 699980), (4154, 654820), (4495, 605144), (4516, 602330), (5645, 481864), (7192, 378215), (7772, 349990), (8308, 327410), (8990, 302572), (9032, 301165), (9715, 279992), (10385, 261928), (11290, 240932), (15544, 174995), (16616, 163705), (17980, 151286), (19430, 139996), (20770, 130964), (22580, 120466), (32741, 83080), (34999, 77720), (35960, 75643), (38860, 69998), (41540, 65482), (45160, 60233)]