20421302720

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{100183}}^1$

素因数の和:100227

約数の個数: 168

約数和(自身を含む): 60919485984

約数和(自身を除く): 40498183264

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 49, 52, 56, 64, 65, 70, 80, 91, 98, 104, 112, 130, 140, 160, 182, 196, 208, 224, 245, 260, 280, 320, 364, 392, 416, 448, 455, 490, 520, 560, 637, 728, 784, 832, 910, 980, 1040, 1120, 1274, 1456, 1568, 1820, 1960, 2080, 2240, 2548, 2912, 3136, 3185, 3640, 3920, 4160, 5096, 5824, 6370, 7280, 7840, 10192, 12740, 14560, 15680, 20384, 25480, 29120, 40768, 50960, 100183, 101920, 200366, 203840, 400732, 500915, 701281, 801464, 1001830, 1302379, 1402562, 1602928, 2003660, 2604758, 2805124, 3205856, 3506405, 4007320, 4908967, 5209516, 5610248, 6411712, 6511895, 7012810, 8014640, 9116653, 9817934, 10419032, 11220496, 13023790, 14025620, 16029280, 18233306, 19635868, 20838064, 22440992, 24544835, 26047580, 28051240, 32058560, 36466612, 39271736, 41676128, 44881984, 45583265, 49089670, 52095160, 56102480, 63816571, 72933224, 78543472, 83352256, 91166530, 98179340, 104190320, 112204960, 127633142, 145866448, 157086944, 182333060, 196358680, 208380640, 224409920, 255266284, 291732896, 314173888, 319082855, 364666120, 392717360, 416761280, 510532568, 583465792, 638165710, 729332240, 785434720, 1021065136, 1276331420, 1458664480, 1570869440, 2042130272, 2552662840, 2917328960, 4084260544, 5105325680, 10210651360, 20421302720]

約数ペア:

[(1, 20421302720), (2, 10210651360), (4, 5105325680), (5, 4084260544), (7, 2917328960), (8, 2552662840), (10, 2042130272), (13, 1570869440), (14, 1458664480), (16, 1276331420), (20, 1021065136), (26, 785434720), (28, 729332240), (32, 638165710), (35, 583465792), (40, 510532568), (49, 416761280), (52, 392717360), (56, 364666120), (64, 319082855), (65, 314173888), (70, 291732896), (80, 255266284), (91, 224409920), (98, 208380640), (104, 196358680), (112, 182333060), (130, 157086944), (140, 145866448), (160, 127633142), (182, 112204960), (196, 104190320), (208, 98179340), (224, 91166530), (245, 83352256), (260, 78543472), (280, 72933224), (320, 63816571), (364, 56102480), (392, 52095160), (416, 49089670), (448, 45583265), (455, 44881984), (490, 41676128), (520, 39271736), (560, 36466612), (637, 32058560), (728, 28051240), (784, 26047580), (832, 24544835), (910, 22440992), (980, 20838064), (1040, 19635868), (1120, 18233306), (1274, 16029280), (1456, 14025620), (1568, 13023790), (1820, 11220496), (1960, 10419032), (2080, 9817934), (2240, 9116653), (2548, 8014640), (2912, 7012810), (3136, 6511895), (3185, 6411712), (3640, 5610248), (3920, 5209516), (4160, 4908967), (5096, 4007320), (5824, 3506405), (6370, 3205856), (7280, 2805124), (7840, 2604758), (10192, 2003660), (12740, 1602928), (14560, 1402562), (15680, 1302379), (20384, 1001830), (25480, 801464), (29120, 701281), (40768, 500915), (50960, 400732), (100183, 203840), (101920, 200366)]