79912980

素因数分解:

$2^2\times 3^9\times 5^1\times 7^1\times {\mathrm{29}}^1$

素因数の和:72

約数の個数: 240

約数和(自身を含む): 297601920

約数和(自身を除く): 217688940

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 29, 30, 35, 36, 42, 45, 54, 58, 60, 63, 70, 81, 84, 87, 90, 105, 108, 116, 126, 135, 140, 145, 162, 174, 180, 189, 203, 210, 243, 252, 261, 270, 290, 315, 324, 348, 378, 405, 406, 420, 435, 486, 522, 540, 567, 580, 609, 630, 729, 756, 783, 810, 812, 870, 945, 972, 1015, 1044, 1134, 1215, 1218, 1260, 1305, 1458, 1566, 1620, 1701, 1740, 1827, 1890, 2030, 2187, 2268, 2349, 2430, 2436, 2610, 2835, 2916, 3045, 3132, 3402, 3645, 3654, 3780, 3915, 4060, 4374, 4698, 4860, 5103, 5220, 5481, 5670, 6090, 6561, 6804, 7047, 7290, 7308, 7830, 8505, 8748, 9135, 9396, 10206, 10935, 10962, 11340, 11745, 12180, 13122, 14094, 14580, 15309, 15660, 16443, 17010, 18270, 19683, 20412, 21141, 21870, 21924, 23490, 25515, 26244, 27405, 28188, 30618, 32805, 32886, 34020, 35235, 36540, 39366, 42282, 43740, 45927, 46980, 49329, 51030, 54810, 61236, 63423, 65610, 65772, 70470, 76545, 78732, 82215, 84564, 91854, 98415, 98658, 102060, 105705, 109620, 126846, 131220, 137781, 140940, 147987, 153090, 164430, 183708, 190269, 196830, 197316, 211410, 229635, 246645, 253692, 275562, 295974, 306180, 317115, 328860, 380538, 393660, 422820, 443961, 459270, 493290, 551124, 570807, 591948, 634230, 688905, 739935, 761076, 887922, 918540, 951345, 986580, 1141614, 1268460, 1331883, 1377810, 1479870, 1775844, 1902690, 2219805, 2283228, 2663766, 2755620, 2854035, 2959740, 3805380, 3995649, 4439610, 5327532, 5708070, 6659415, 7991298, 8879220, 11416140, 13318830, 15982596, 19978245, 26637660, 39956490, 79912980]

約数ペア:

[(1, 79912980), (2, 39956490), (3, 26637660), (4, 19978245), (5, 15982596), (6, 13318830), (7, 11416140), (9, 8879220), (10, 7991298), (12, 6659415), (14, 5708070), (15, 5327532), (18, 4439610), (20, 3995649), (21, 3805380), (27, 2959740), (28, 2854035), (29, 2755620), (30, 2663766), (35, 2283228), (36, 2219805), (42, 1902690), (45, 1775844), (54, 1479870), (58, 1377810), (60, 1331883), (63, 1268460), (70, 1141614), (81, 986580), (84, 951345), (87, 918540), (90, 887922), (105, 761076), (108, 739935), (116, 688905), (126, 634230), (135, 591948), (140, 570807), (145, 551124), (162, 493290), (174, 459270), (180, 443961), (189, 422820), (203, 393660), (210, 380538), (243, 328860), (252, 317115), (261, 306180), (270, 295974), (290, 275562), (315, 253692), (324, 246645), (348, 229635), (378, 211410), (405, 197316), (406, 196830), (420, 190269), (435, 183708), (486, 164430), (522, 153090), (540, 147987), (567, 140940), (580, 137781), (609, 131220), (630, 126846), (729, 109620), (756, 105705), (783, 102060), (810, 98658), (812, 98415), (870, 91854), (945, 84564), (972, 82215), (1015, 78732), (1044, 76545), (1134, 70470), (1215, 65772), (1218, 65610), (1260, 63423), (1305, 61236), (1458, 54810), (1566, 51030), (1620, 49329), (1701, 46980), (1740, 45927), (1827, 43740), (1890, 42282), (2030, 39366), (2187, 36540), (2268, 35235), (2349, 34020), (2430, 32886), (2436, 32805), (2610, 30618), (2835, 28188), (2916, 27405), (3045, 26244), (3132, 25515), (3402, 23490), (3645, 21924), (3654, 21870), (3780, 21141), (3915, 20412), (4060, 19683), (4374, 18270), (4698, 17010), (4860, 16443), (5103, 15660), (5220, 15309), (5481, 14580), (5670, 14094), (6090, 13122), (6561, 12180), (6804, 11745), (7047, 11340), (7290, 10962), (7308, 10935), (7830, 10206), (8505, 9396), (8748, 9135)]