20521563840

素因数分解:

$2^6\times 3^5\times 5^1\times {\mathrm{263909}}^1$

素因数の和:263941

約数の個数: 168

約数和(自身を含む): 73200188880

約数和(自身を除く): 52678625040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 81, 90, 96, 108, 120, 135, 144, 160, 162, 180, 192, 216, 240, 243, 270, 288, 320, 324, 360, 405, 432, 480, 486, 540, 576, 648, 720, 810, 864, 960, 972, 1080, 1215, 1296, 1440, 1620, 1728, 1944, 2160, 2430, 2592, 2880, 3240, 3888, 4320, 4860, 5184, 6480, 7776, 8640, 9720, 12960, 15552, 19440, 25920, 38880, 77760, 263909, 527818, 791727, 1055636, 1319545, 1583454, 2111272, 2375181, 2639090, 3166908, 3958635, 4222544, 4750362, 5278180, 6333816, 7125543, 7917270, 8445088, 9500724, 10556360, 11875905, 12667632, 14251086, 15834540, 16890176, 19001448, 21112720, 21376629, 23751810, 25335264, 28502172, 31669080, 35627715, 38002896, 42225440, 42753258, 47503620, 50670528, 57004344, 63338160, 64129887, 71255430, 76005792, 84450880, 85506516, 95007240, 106883145, 114008688, 126676320, 128259774, 142510860, 152011584, 171013032, 190014480, 213766290, 228017376, 253352640, 256519548, 285021720, 320649435, 342026064, 380028960, 427532580, 456034752, 513039096, 570043440, 641298870, 684052128, 760057920, 855065160, 1026078192, 1140086880, 1282597740, 1368104256, 1710130320, 2052156384, 2280173760, 2565195480, 3420260640, 4104312768, 5130390960, 6840521280, 10260781920, 20521563840]

約数ペア:

[(1, 20521563840), (2, 10260781920), (3, 6840521280), (4, 5130390960), (5, 4104312768), (6, 3420260640), (8, 2565195480), (9, 2280173760), (10, 2052156384), (12, 1710130320), (15, 1368104256), (16, 1282597740), (18, 1140086880), (20, 1026078192), (24, 855065160), (27, 760057920), (30, 684052128), (32, 641298870), (36, 570043440), (40, 513039096), (45, 456034752), (48, 427532580), (54, 380028960), (60, 342026064), (64, 320649435), (72, 285021720), (80, 256519548), (81, 253352640), (90, 228017376), (96, 213766290), (108, 190014480), (120, 171013032), (135, 152011584), (144, 142510860), (160, 128259774), (162, 126676320), (180, 114008688), (192, 106883145), (216, 95007240), (240, 85506516), (243, 84450880), (270, 76005792), (288, 71255430), (320, 64129887), (324, 63338160), (360, 57004344), (405, 50670528), (432, 47503620), (480, 42753258), (486, 42225440), (540, 38002896), (576, 35627715), (648, 31669080), (720, 28502172), (810, 25335264), (864, 23751810), (960, 21376629), (972, 21112720), (1080, 19001448), (1215, 16890176), (1296, 15834540), (1440, 14251086), (1620, 12667632), (1728, 11875905), (1944, 10556360), (2160, 9500724), (2430, 8445088), (2592, 7917270), (2880, 7125543), (3240, 6333816), (3888, 5278180), (4320, 4750362), (4860, 4222544), (5184, 3958635), (6480, 3166908), (7776, 2639090), (8640, 2375181), (9720, 2111272), (12960, 1583454), (15552, 1319545), (19440, 1055636), (25920, 791727), (38880, 527818), (77760, 263909)]