2155860

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1$

素因数の和:110

約数の個数: 144

約数和(自身を含む): 7862400

約数和(自身を除く): 5706540

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 29, 30, 35, 36, 42, 45, 58, 59, 60, 63, 70, 84, 87, 90, 105, 116, 118, 126, 140, 145, 174, 177, 180, 203, 210, 236, 252, 261, 290, 295, 315, 348, 354, 406, 413, 420, 435, 522, 531, 580, 590, 609, 630, 708, 812, 826, 870, 885, 1015, 1044, 1062, 1180, 1218, 1239, 1260, 1305, 1652, 1711, 1740, 1770, 1827, 2030, 2065, 2124, 2436, 2478, 2610, 2655, 3045, 3422, 3540, 3654, 3717, 4060, 4130, 4956, 5133, 5220, 5310, 6090, 6195, 6844, 7308, 7434, 8260, 8555, 9135, 10266, 10620, 11977, 12180, 12390, 14868, 15399, 17110, 18270, 18585, 20532, 23954, 24780, 25665, 30798, 34220, 35931, 36540, 37170, 47908, 51330, 59885, 61596, 71862, 74340, 76995, 102660, 107793, 119770, 143724, 153990, 179655, 215586, 239540, 307980, 359310, 431172, 538965, 718620, 1077930, 2155860]

約数ペア:

[(1, 2155860), (2, 1077930), (3, 718620), (4, 538965), (5, 431172), (6, 359310), (7, 307980), (9, 239540), (10, 215586), (12, 179655), (14, 153990), (15, 143724), (18, 119770), (20, 107793), (21, 102660), (28, 76995), (29, 74340), (30, 71862), (35, 61596), (36, 59885), (42, 51330), (45, 47908), (58, 37170), (59, 36540), (60, 35931), (63, 34220), (70, 30798), (84, 25665), (87, 24780), (90, 23954), (105, 20532), (116, 18585), (118, 18270), (126, 17110), (140, 15399), (145, 14868), (174, 12390), (177, 12180), (180, 11977), (203, 10620), (210, 10266), (236, 9135), (252, 8555), (261, 8260), (290, 7434), (295, 7308), (315, 6844), (348, 6195), (354, 6090), (406, 5310), (413, 5220), (420, 5133), (435, 4956), (522, 4130), (531, 4060), (580, 3717), (590, 3654), (609, 3540), (630, 3422), (708, 3045), (812, 2655), (826, 2610), (870, 2478), (885, 2436), (1015, 2124), (1044, 2065), (1062, 2030), (1180, 1827), (1218, 1770), (1239, 1740), (1260, 1711), (1305, 1652)]