2005201980

素因数分解:

$2^2\times 3^6\times 5^1\times {\mathrm{83}}^1\times {\mathrm{1657}}^1$

素因数の和:1767

約数の個数: 168

約数和(自身を含む): 6393420432

約数和(自身を除く): 4388218452

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 83, 90, 108, 135, 162, 166, 180, 243, 249, 270, 324, 332, 405, 415, 486, 498, 540, 729, 747, 810, 830, 972, 996, 1215, 1245, 1458, 1494, 1620, 1657, 1660, 2241, 2430, 2490, 2916, 2988, 3314, 3645, 3735, 4482, 4860, 4971, 4980, 6628, 6723, 7290, 7470, 8285, 8964, 9942, 11205, 13446, 14580, 14913, 14940, 16570, 19884, 20169, 22410, 24855, 26892, 29826, 33140, 33615, 40338, 44739, 44820, 49710, 59652, 60507, 67230, 74565, 80676, 89478, 99420, 100845, 121014, 134217, 134460, 137531, 149130, 178956, 201690, 223695, 242028, 268434, 275062, 298260, 302535, 402651, 403380, 412593, 447390, 536868, 550124, 605070, 671085, 687655, 805302, 825186, 894780, 1207953, 1210140, 1237779, 1342170, 1375310, 1610604, 1650372, 2013255, 2062965, 2415906, 2475558, 2684340, 2750620, 3713337, 4026510, 4125930, 4831812, 4951116, 6039765, 6188895, 7426674, 8053020, 8251860, 11140011, 12079530, 12377790, 14853348, 18566685, 22280022, 24159060, 24755580, 33420033, 37133370, 44560044, 55700055, 66840066, 74266740, 100260099, 111400110, 133680132, 167100165, 200520198, 222800220, 334200330, 401040396, 501300495, 668400660, 1002600990, 2005201980]

約数ペア:

[(1, 2005201980), (2, 1002600990), (3, 668400660), (4, 501300495), (5, 401040396), (6, 334200330), (9, 222800220), (10, 200520198), (12, 167100165), (15, 133680132), (18, 111400110), (20, 100260099), (27, 74266740), (30, 66840066), (36, 55700055), (45, 44560044), (54, 37133370), (60, 33420033), (81, 24755580), (83, 24159060), (90, 22280022), (108, 18566685), (135, 14853348), (162, 12377790), (166, 12079530), (180, 11140011), (243, 8251860), (249, 8053020), (270, 7426674), (324, 6188895), (332, 6039765), (405, 4951116), (415, 4831812), (486, 4125930), (498, 4026510), (540, 3713337), (729, 2750620), (747, 2684340), (810, 2475558), (830, 2415906), (972, 2062965), (996, 2013255), (1215, 1650372), (1245, 1610604), (1458, 1375310), (1494, 1342170), (1620, 1237779), (1657, 1210140), (1660, 1207953), (2241, 894780), (2430, 825186), (2490, 805302), (2916, 687655), (2988, 671085), (3314, 605070), (3645, 550124), (3735, 536868), (4482, 447390), (4860, 412593), (4971, 403380), (4980, 402651), (6628, 302535), (6723, 298260), (7290, 275062), (7470, 268434), (8285, 242028), (8964, 223695), (9942, 201690), (11205, 178956), (13446, 149130), (14580, 137531), (14913, 134460), (14940, 134217), (16570, 121014), (19884, 100845), (20169, 99420), (22410, 89478), (24855, 80676), (26892, 74565), (29826, 67230), (33140, 60507), (33615, 59652), (40338, 49710), (44739, 44820)]