20795407920

素因数分解:

$2^4\times 3^2\times 5^1\times 7^2\times {\mathrm{589439}}^1$

素因数の和:589472

約数の個数: 180

約数和(自身を含む): 81240157440

約数和(自身を除く): 60444749520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 80, 84, 90, 98, 105, 112, 120, 126, 140, 144, 147, 168, 180, 196, 210, 240, 245, 252, 280, 294, 315, 336, 360, 392, 420, 441, 490, 504, 560, 588, 630, 720, 735, 784, 840, 882, 980, 1008, 1176, 1260, 1470, 1680, 1764, 1960, 2205, 2352, 2520, 2940, 3528, 3920, 4410, 5040, 5880, 7056, 8820, 11760, 17640, 35280, 589439, 1178878, 1768317, 2357756, 2947195, 3536634, 4126073, 4715512, 5304951, 5894390, 7073268, 8252146, 8841585, 9431024, 10609902, 11788780, 12378219, 14146536, 16504292, 17683170, 20630365, 21219804, 23577560, 24756438, 26524755, 28293072, 28882511, 33008584, 35366340, 37134657, 41260730, 42439608, 47155120, 49512876, 53049510, 57765022, 61891095, 66017168, 70732680, 74269314, 82521460, 84879216, 86647533, 99025752, 106099020, 115530044, 123782190, 141465360, 144412555, 148538628, 165042920, 173295066, 185673285, 198051504, 212198040, 231060088, 247564380, 259942599, 288825110, 297077256, 330085840, 346590132, 371346570, 424396080, 433237665, 462120176, 495128760, 519885198, 577650220, 594154512, 693180264, 742693140, 866475330, 990257520, 1039770396, 1155300440, 1299712995, 1386360528, 1485386280, 1732950660, 2079540792, 2310600880, 2599425990, 2970772560, 3465901320, 4159081584, 5198851980, 6931802640, 10397703960, 20795407920]

約数ペア:

[(1, 20795407920), (2, 10397703960), (3, 6931802640), (4, 5198851980), (5, 4159081584), (6, 3465901320), (7, 2970772560), (8, 2599425990), (9, 2310600880), (10, 2079540792), (12, 1732950660), (14, 1485386280), (15, 1386360528), (16, 1299712995), (18, 1155300440), (20, 1039770396), (21, 990257520), (24, 866475330), (28, 742693140), (30, 693180264), (35, 594154512), (36, 577650220), (40, 519885198), (42, 495128760), (45, 462120176), (48, 433237665), (49, 424396080), (56, 371346570), (60, 346590132), (63, 330085840), (70, 297077256), (72, 288825110), (80, 259942599), (84, 247564380), (90, 231060088), (98, 212198040), (105, 198051504), (112, 185673285), (120, 173295066), (126, 165042920), (140, 148538628), (144, 144412555), (147, 141465360), (168, 123782190), (180, 115530044), (196, 106099020), (210, 99025752), (240, 86647533), (245, 84879216), (252, 82521460), (280, 74269314), (294, 70732680), (315, 66017168), (336, 61891095), (360, 57765022), (392, 53049510), (420, 49512876), (441, 47155120), (490, 42439608), (504, 41260730), (560, 37134657), (588, 35366340), (630, 33008584), (720, 28882511), (735, 28293072), (784, 26524755), (840, 24756438), (882, 23577560), (980, 21219804), (1008, 20630365), (1176, 17683170), (1260, 16504292), (1470, 14146536), (1680, 12378219), (1764, 11788780), (1960, 10609902), (2205, 9431024), (2352, 8841585), (2520, 8252146), (2940, 7073268), (3528, 5894390), (3920, 5304951), (4410, 4715512), (5040, 4126073), (5880, 3536634), (7056, 2947195), (8820, 2357756), (11760, 1768317), (17640, 1178878), (35280, 589439)]