21820005420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{347}}^1\times {\mathrm{509}}^1$

素因数の和:968

約数の個数: 192

約数和(自身を含む): 64403942400

約数和(自身を除く): 42583936980

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 60, 71, 87, 116, 142, 145, 174, 213, 284, 290, 347, 348, 355, 426, 435, 509, 580, 694, 710, 852, 870, 1018, 1041, 1065, 1388, 1420, 1527, 1735, 1740, 2036, 2059, 2082, 2130, 2545, 3054, 3470, 4118, 4164, 4260, 5090, 5205, 6108, 6177, 6940, 7635, 8236, 10063, 10180, 10295, 10410, 12354, 14761, 15270, 20126, 20590, 20820, 24637, 24708, 29522, 30189, 30540, 30885, 36139, 40252, 41180, 44283, 49274, 50315, 59044, 60378, 61770, 72278, 73805, 73911, 88566, 98548, 100630, 108417, 120756, 123185, 123540, 144556, 147610, 147822, 150945, 176623, 177132, 180695, 201260, 216834, 221415, 246370, 295220, 295644, 301890, 353246, 361390, 369555, 433668, 442830, 492740, 529869, 542085, 603780, 706492, 714473, 722780, 739110, 883115, 885660, 1048031, 1059738, 1084170, 1428946, 1478220, 1766230, 2096062, 2119476, 2143419, 2168340, 2649345, 2857892, 3144093, 3532460, 3572365, 4192124, 4286838, 5122067, 5240155, 5298690, 6288186, 7144730, 8573676, 10244134, 10480310, 10597380, 10717095, 12540233, 12576372, 14289460, 15366201, 15720465, 20488268, 20960620, 21434190, 25080466, 25610335, 30732402, 31440930, 37620699, 42868380, 50160932, 51220670, 61464804, 62701165, 62881860, 75241398, 76831005, 102441340, 125402330, 150482796, 153662010, 188103495, 250804660, 307324020, 363666757, 376206990, 727333514, 752413980, 1091000271, 1454667028, 1818333785, 2182000542, 3636667570, 4364001084, 5455001355, 7273335140, 10910002710, 21820005420]

約数ペア:

[(1, 21820005420), (2, 10910002710), (3, 7273335140), (4, 5455001355), (5, 4364001084), (6, 3636667570), (10, 2182000542), (12, 1818333785), (15, 1454667028), (20, 1091000271), (29, 752413980), (30, 727333514), (58, 376206990), (60, 363666757), (71, 307324020), (87, 250804660), (116, 188103495), (142, 153662010), (145, 150482796), (174, 125402330), (213, 102441340), (284, 76831005), (290, 75241398), (347, 62881860), (348, 62701165), (355, 61464804), (426, 51220670), (435, 50160932), (509, 42868380), (580, 37620699), (694, 31440930), (710, 30732402), (852, 25610335), (870, 25080466), (1018, 21434190), (1041, 20960620), (1065, 20488268), (1388, 15720465), (1420, 15366201), (1527, 14289460), (1735, 12576372), (1740, 12540233), (2036, 10717095), (2059, 10597380), (2082, 10480310), (2130, 10244134), (2545, 8573676), (3054, 7144730), (3470, 6288186), (4118, 5298690), (4164, 5240155), (4260, 5122067), (5090, 4286838), (5205, 4192124), (6108, 3572365), (6177, 3532460), (6940, 3144093), (7635, 2857892), (8236, 2649345), (10063, 2168340), (10180, 2143419), (10295, 2119476), (10410, 2096062), (12354, 1766230), (14761, 1478220), (15270, 1428946), (20126, 1084170), (20590, 1059738), (20820, 1048031), (24637, 885660), (24708, 883115), (29522, 739110), (30189, 722780), (30540, 714473), (30885, 706492), (36139, 603780), (40252, 542085), (41180, 529869), (44283, 492740), (49274, 442830), (50315, 433668), (59044, 369555), (60378, 361390), (61770, 353246), (72278, 301890), (73805, 295644), (73911, 295220), (88566, 246370), (98548, 221415), (100630, 216834), (108417, 201260), (120756, 180695), (123185, 177132), (123540, 176623), (144556, 150945), (147610, 147822)]