15120420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:202

約数の個数: 144

約数和(自身を含む): 50944320

約数和(自身を除く): 35823900

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 37, 42, 49, 60, 70, 74, 84, 98, 105, 111, 139, 140, 147, 148, 185, 196, 210, 222, 245, 259, 278, 294, 370, 417, 420, 444, 490, 518, 555, 556, 588, 695, 735, 740, 777, 834, 973, 980, 1036, 1110, 1295, 1390, 1470, 1554, 1668, 1813, 1946, 2085, 2220, 2590, 2780, 2919, 2940, 3108, 3626, 3885, 3892, 4170, 4865, 5143, 5180, 5439, 5838, 6811, 7252, 7770, 8340, 9065, 9730, 10286, 10878, 11676, 13622, 14595, 15429, 15540, 18130, 19460, 20433, 20572, 21756, 25715, 27195, 27244, 29190, 30858, 34055, 36001, 36260, 40866, 51430, 54390, 58380, 61716, 68110, 72002, 77145, 81732, 102165, 102860, 108003, 108780, 136220, 144004, 154290, 180005, 204330, 216006, 252007, 308580, 360010, 408660, 432012, 504014, 540015, 720020, 756021, 1008028, 1080030, 1260035, 1512042, 2160060, 2520070, 3024084, 3780105, 5040140, 7560210, 15120420]

約数ペア:

[(1, 15120420), (2, 7560210), (3, 5040140), (4, 3780105), (5, 3024084), (6, 2520070), (7, 2160060), (10, 1512042), (12, 1260035), (14, 1080030), (15, 1008028), (20, 756021), (21, 720020), (28, 540015), (30, 504014), (35, 432012), (37, 408660), (42, 360010), (49, 308580), (60, 252007), (70, 216006), (74, 204330), (84, 180005), (98, 154290), (105, 144004), (111, 136220), (139, 108780), (140, 108003), (147, 102860), (148, 102165), (185, 81732), (196, 77145), (210, 72002), (222, 68110), (245, 61716), (259, 58380), (278, 54390), (294, 51430), (370, 40866), (417, 36260), (420, 36001), (444, 34055), (490, 30858), (518, 29190), (555, 27244), (556, 27195), (588, 25715), (695, 21756), (735, 20572), (740, 20433), (777, 19460), (834, 18130), (973, 15540), (980, 15429), (1036, 14595), (1110, 13622), (1295, 11676), (1390, 10878), (1470, 10286), (1554, 9730), (1668, 9065), (1813, 8340), (1946, 7770), (2085, 7252), (2220, 6811), (2590, 5838), (2780, 5439), (2919, 5180), (2940, 5143), (3108, 4865), (3626, 4170), (3885, 3892)]