20821401360

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1257331}}^1$

素因数の和:1257373

約数の個数: 120

約数和(自身を含む): 72965490624

約数和(自身を除く): 52144089264

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 36, 40, 45, 46, 48, 60, 69, 72, 80, 90, 92, 115, 120, 138, 144, 180, 184, 207, 230, 240, 276, 345, 360, 368, 414, 460, 552, 690, 720, 828, 920, 1035, 1104, 1380, 1656, 1840, 2070, 2760, 3312, 4140, 5520, 8280, 16560, 1257331, 2514662, 3771993, 5029324, 6286655, 7543986, 10058648, 11315979, 12573310, 15087972, 18859965, 20117296, 22631958, 25146620, 28918613, 30175944, 37719930, 45263916, 50293240, 56579895, 57837226, 60351888, 75439860, 86755839, 90527832, 100586480, 113159790, 115674452, 144593065, 150879720, 173511678, 181055664, 226319580, 231348904, 260267517, 289186130, 301759440, 347023356, 433779195, 452639160, 462697808, 520535034, 578372260, 694046712, 867558390, 905278320, 1041070068, 1156744520, 1301337585, 1388093424, 1735116780, 2082140136, 2313489040, 2602675170, 3470233560, 4164280272, 5205350340, 6940467120, 10410700680, 20821401360]

約数ペア:

[(1, 20821401360), (2, 10410700680), (3, 6940467120), (4, 5205350340), (5, 4164280272), (6, 3470233560), (8, 2602675170), (9, 2313489040), (10, 2082140136), (12, 1735116780), (15, 1388093424), (16, 1301337585), (18, 1156744520), (20, 1041070068), (23, 905278320), (24, 867558390), (30, 694046712), (36, 578372260), (40, 520535034), (45, 462697808), (46, 452639160), (48, 433779195), (60, 347023356), (69, 301759440), (72, 289186130), (80, 260267517), (90, 231348904), (92, 226319580), (115, 181055664), (120, 173511678), (138, 150879720), (144, 144593065), (180, 115674452), (184, 113159790), (207, 100586480), (230, 90527832), (240, 86755839), (276, 75439860), (345, 60351888), (360, 57837226), (368, 56579895), (414, 50293240), (460, 45263916), (552, 37719930), (690, 30175944), (720, 28918613), (828, 25146620), (920, 22631958), (1035, 20117296), (1104, 18859965), (1380, 15087972), (1656, 12573310), (1840, 11315979), (2070, 10058648), (2760, 7543986), (3312, 6286655), (4140, 5029324), (5520, 3771993), (8280, 2514662), (16560, 1257331)]