19440540

素因数分解:

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

素因数の和:201

約数の個数: 192

約数和(自身を含む): 71500800

約数和(自身を除く): 52060260

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 37, 42, 45, 54, 60, 63, 70, 74, 84, 90, 105, 108, 111, 126, 135, 139, 140, 148, 180, 185, 189, 210, 222, 252, 259, 270, 278, 315, 333, 370, 378, 417, 420, 444, 518, 540, 555, 556, 630, 666, 695, 740, 756, 777, 834, 945, 973, 999, 1036, 1110, 1251, 1260, 1295, 1332, 1390, 1554, 1665, 1668, 1890, 1946, 1998, 2085, 2220, 2331, 2502, 2590, 2780, 2919, 3108, 3330, 3753, 3780, 3885, 3892, 3996, 4170, 4662, 4865, 4995, 5004, 5143, 5180, 5838, 6255, 6660, 6993, 7506, 7770, 8340, 8757, 9324, 9730, 9990, 10286, 11655, 11676, 12510, 13986, 14595, 15012, 15429, 15540, 17514, 18765, 19460, 19980, 20572, 23310, 25020, 25715, 26271, 27972, 29190, 30858, 34965, 35028, 36001, 37530, 43785, 46287, 46620, 51430, 52542, 58380, 61716, 69930, 72002, 75060, 77145, 87570, 92574, 102860, 105084, 108003, 131355, 138861, 139860, 144004, 154290, 175140, 180005, 185148, 216006, 231435, 262710, 277722, 308580, 324009, 360010, 432012, 462870, 525420, 540015, 555444, 648018, 694305, 720020, 925740, 972027, 1080030, 1296036, 1388610, 1620045, 1944054, 2160060, 2777220, 3240090, 3888108, 4860135, 6480180, 9720270, 19440540]

約数ペア:

[(1, 19440540), (2, 9720270), (3, 6480180), (4, 4860135), (5, 3888108), (6, 3240090), (7, 2777220), (9, 2160060), (10, 1944054), (12, 1620045), (14, 1388610), (15, 1296036), (18, 1080030), (20, 972027), (21, 925740), (27, 720020), (28, 694305), (30, 648018), (35, 555444), (36, 540015), (37, 525420), (42, 462870), (45, 432012), (54, 360010), (60, 324009), (63, 308580), (70, 277722), (74, 262710), (84, 231435), (90, 216006), (105, 185148), (108, 180005), (111, 175140), (126, 154290), (135, 144004), (139, 139860), (140, 138861), (148, 131355), (180, 108003), (185, 105084), (189, 102860), (210, 92574), (222, 87570), (252, 77145), (259, 75060), (270, 72002), (278, 69930), (315, 61716), (333, 58380), (370, 52542), (378, 51430), (417, 46620), (420, 46287), (444, 43785), (518, 37530), (540, 36001), (555, 35028), (556, 34965), (630, 30858), (666, 29190), (695, 27972), (740, 26271), (756, 25715), (777, 25020), (834, 23310), (945, 20572), (973, 19980), (999, 19460), (1036, 18765), (1110, 17514), (1251, 15540), (1260, 15429), (1295, 15012), (1332, 14595), (1390, 13986), (1554, 12510), (1665, 11676), (1668, 11655), (1890, 10286), (1946, 9990), (1998, 9730), (2085, 9324), (2220, 8757), (2331, 8340), (2502, 7770), (2590, 7506), (2780, 6993), (2919, 6660), (3108, 6255), (3330, 5838), (3753, 5180), (3780, 5143), (3885, 5004), (3892, 4995), (3996, 4865), (4170, 4662)]