20685502980

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{673}}^1\times {\mathrm{18973}}^1$

素因数の和:19667

約数の個数: 120

約数和(自身を含む): 64991035032

約数和(自身を除く): 44305532052

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 673, 810, 1346, 1620, 2019, 2692, 3365, 4038, 6057, 6730, 8076, 10095, 12114, 13460, 18171, 18973, 20190, 24228, 30285, 36342, 37946, 40380, 54513, 56919, 60570, 72684, 75892, 90855, 94865, 109026, 113838, 121140, 170757, 181710, 189730, 218052, 227676, 272565, 284595, 341514, 363420, 379460, 512271, 545130, 569190, 683028, 853785, 1024542, 1090260, 1138380, 1536813, 1707570, 2049084, 2561355, 3073626, 3415140, 5122710, 6147252, 7684065, 10245420, 12768829, 15368130, 25537658, 30736260, 38306487, 51075316, 63844145, 76612974, 114919461, 127688290, 153225948, 191532435, 229838922, 255376580, 344758383, 383064870, 459677844, 574597305, 689516766, 766129740, 1034275149, 1149194610, 1379033532, 1723791915, 2068550298, 2298389220, 3447583830, 4137100596, 5171375745, 6895167660, 10342751490, 20685502980]

約数ペア:

[(1, 20685502980), (2, 10342751490), (3, 6895167660), (4, 5171375745), (5, 4137100596), (6, 3447583830), (9, 2298389220), (10, 2068550298), (12, 1723791915), (15, 1379033532), (18, 1149194610), (20, 1034275149), (27, 766129740), (30, 689516766), (36, 574597305), (45, 459677844), (54, 383064870), (60, 344758383), (81, 255376580), (90, 229838922), (108, 191532435), (135, 153225948), (162, 127688290), (180, 114919461), (270, 76612974), (324, 63844145), (405, 51075316), (540, 38306487), (673, 30736260), (810, 25537658), (1346, 15368130), (1620, 12768829), (2019, 10245420), (2692, 7684065), (3365, 6147252), (4038, 5122710), (6057, 3415140), (6730, 3073626), (8076, 2561355), (10095, 2049084), (12114, 1707570), (13460, 1536813), (18171, 1138380), (18973, 1090260), (20190, 1024542), (24228, 853785), (30285, 683028), (36342, 569190), (37946, 545130), (40380, 512271), (54513, 379460), (56919, 363420), (60570, 341514), (72684, 284595), (75892, 272565), (90855, 227676), (94865, 218052), (109026, 189730), (113838, 181710), (121140, 170757)]