20212556400

素因数分解:

$2^4\times 3^3\times 5^2\times {\mathrm{23}}^1\times {\mathrm{81371}}^1$

素因数の和:81421

約数の個数: 240

約数和(自身を含む): 75070552320

約数和(自身を除く): 54857995920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 25, 27, 30, 36, 40, 45, 46, 48, 50, 54, 60, 69, 72, 75, 80, 90, 92, 100, 108, 115, 120, 135, 138, 144, 150, 180, 184, 200, 207, 216, 225, 230, 240, 270, 276, 300, 345, 360, 368, 400, 414, 432, 450, 460, 540, 552, 575, 600, 621, 675, 690, 720, 828, 900, 920, 1035, 1080, 1104, 1150, 1200, 1242, 1350, 1380, 1656, 1725, 1800, 1840, 2070, 2160, 2300, 2484, 2700, 2760, 3105, 3312, 3450, 3600, 4140, 4600, 4968, 5175, 5400, 5520, 6210, 6900, 8280, 9200, 9936, 10350, 10800, 12420, 13800, 15525, 16560, 20700, 24840, 27600, 31050, 41400, 49680, 62100, 81371, 82800, 124200, 162742, 244113, 248400, 325484, 406855, 488226, 650968, 732339, 813710, 976452, 1220565, 1301936, 1464678, 1627420, 1871533, 1952904, 2034275, 2197017, 2441130, 2929356, 3254840, 3661695, 3743066, 3905808, 4068550, 4394034, 4882260, 5614599, 5858712, 6102825, 6509680, 7323390, 7486132, 8137100, 8788068, 9357665, 9764520, 10985085, 11229198, 11717424, 12205650, 14646780, 14972264, 16274200, 16843797, 17576136, 18308475, 18715330, 19529040, 21970170, 22458396, 24411300, 28072995, 29293560, 29944528, 32548400, 33687594, 35152272, 36616950, 37430660, 43940340, 44916792, 46788325, 48822600, 50531391, 54925425, 56145990, 58587120, 67375188, 73233900, 74861320, 84218985, 87880680, 89833584, 93576650, 97645200, 101062782, 109850850, 112291980, 134750376, 140364975, 146467800, 149722640, 168437970, 175761360, 187153300, 202125564, 219701700, 224583960, 252656955, 269500752, 280729950, 292935600, 336875940, 374306600, 404251128, 421094925, 439403400, 449167920, 505313910, 561459900, 673751880, 748613200, 808502256, 842189850, 878806800, 1010627820, 1122919800, 1263284775, 1347503760, 1684379700, 2021255640, 2245839600, 2526569550, 3368759400, 4042511280, 5053139100, 6737518800, 10106278200, 20212556400]

約数ペア:

[(1, 20212556400), (2, 10106278200), (3, 6737518800), (4, 5053139100), (5, 4042511280), (6, 3368759400), (8, 2526569550), (9, 2245839600), (10, 2021255640), (12, 1684379700), (15, 1347503760), (16, 1263284775), (18, 1122919800), (20, 1010627820), (23, 878806800), (24, 842189850), (25, 808502256), (27, 748613200), (30, 673751880), (36, 561459900), (40, 505313910), (45, 449167920), (46, 439403400), (48, 421094925), (50, 404251128), (54, 374306600), (60, 336875940), (69, 292935600), (72, 280729950), (75, 269500752), (80, 252656955), (90, 224583960), (92, 219701700), (100, 202125564), (108, 187153300), (115, 175761360), (120, 168437970), (135, 149722640), (138, 146467800), (144, 140364975), (150, 134750376), (180, 112291980), (184, 109850850), (200, 101062782), (207, 97645200), (216, 93576650), (225, 89833584), (230, 87880680), (240, 84218985), (270, 74861320), (276, 73233900), (300, 67375188), (345, 58587120), (360, 56145990), (368, 54925425), (400, 50531391), (414, 48822600), (432, 46788325), (450, 44916792), (460, 43940340), (540, 37430660), (552, 36616950), (575, 35152272), (600, 33687594), (621, 32548400), (675, 29944528), (690, 29293560), (720, 28072995), (828, 24411300), (900, 22458396), (920, 21970170), (1035, 19529040), (1080, 18715330), (1104, 18308475), (1150, 17576136), (1200, 16843797), (1242, 16274200), (1350, 14972264), (1380, 14646780), (1656, 12205650), (1725, 11717424), (1800, 11229198), (1840, 10985085), (2070, 9764520), (2160, 9357665), (2300, 8788068), (2484, 8137100), (2700, 7486132), (2760, 7323390), (3105, 6509680), (3312, 6102825), (3450, 5858712), (3600, 5614599), (4140, 4882260), (4600, 4394034), (4968, 4068550), (5175, 3905808), (5400, 3743066), (5520, 3661695), (6210, 3254840), (6900, 2929356), (8280, 2441130), (9200, 2197017), (9936, 2034275), (10350, 1952904), (10800, 1871533), (12420, 1627420), (13800, 1464678), (15525, 1301936), (16560, 1220565), (20700, 976452), (24840, 813710), (27600, 732339), (31050, 650968), (41400, 488226), (49680, 406855), (62100, 325484), (81371, 248400), (82800, 244113), (124200, 162742)]