31387860

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{859}}^1$

素因数の和:910

約数の個数: 144

約数和(自身を含む): 112694400

約数和(自身を除く): 81306540

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, 60, 63, 70, 84, 87, 90, 105, 116, 126, 140, 145, 174, 180, 203, 210, 252, 261, 290, 315, 348, 406, 420, 435, 522, 580, 609, 630, 812, 859, 870, 1015, 1044, 1218, 1260, 1305, 1718, 1740, 1827, 2030, 2436, 2577, 2610, 3045, 3436, 3654, 4060, 4295, 5154, 5220, 6013, 6090, 7308, 7731, 8590, 9135, 10308, 12026, 12180, 12885, 15462, 17180, 18039, 18270, 24052, 24911, 25770, 30065, 30924, 36078, 36540, 38655, 49822, 51540, 54117, 60130, 72156, 74733, 77310, 90195, 99644, 108234, 120260, 124555, 149466, 154620, 174377, 180390, 216468, 224199, 249110, 270585, 298932, 348754, 360780, 373665, 448398, 498220, 523131, 541170, 697508, 747330, 871885, 896796, 1046262, 1082340, 1120995, 1494660, 1569393, 1743770, 2092524, 2241990, 2615655, 3138786, 3487540, 4483980, 5231310, 6277572, 7846965, 10462620, 15693930, 31387860]

約数ペア:

[(1, 31387860), (2, 15693930), (3, 10462620), (4, 7846965), (5, 6277572), (6, 5231310), (7, 4483980), (9, 3487540), (10, 3138786), (12, 2615655), (14, 2241990), (15, 2092524), (18, 1743770), (20, 1569393), (21, 1494660), (28, 1120995), (29, 1082340), (30, 1046262), (35, 896796), (36, 871885), (42, 747330), (45, 697508), (58, 541170), (60, 523131), (63, 498220), (70, 448398), (84, 373665), (87, 360780), (90, 348754), (105, 298932), (116, 270585), (126, 249110), (140, 224199), (145, 216468), (174, 180390), (180, 174377), (203, 154620), (210, 149466), (252, 124555), (261, 120260), (290, 108234), (315, 99644), (348, 90195), (406, 77310), (420, 74733), (435, 72156), (522, 60130), (580, 54117), (609, 51540), (630, 49822), (812, 38655), (859, 36540), (870, 36078), (1015, 30924), (1044, 30065), (1218, 25770), (1260, 24911), (1305, 24052), (1718, 18270), (1740, 18039), (1827, 17180), (2030, 15462), (2436, 12885), (2577, 12180), (2610, 12026), (3045, 10308), (3436, 9135), (3654, 8590), (4060, 7731), (4295, 7308), (5154, 6090), (5220, 6013)]