18745020

素因数分解:

$2^2\times 3^5\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1$

素因数の和:79

約数の個数: 288

約数和(自身を含む): 73382400

約数和(自身を除く): 54637380

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 27, 28, 29, 30, 35, 36, 38, 42, 45, 54, 57, 58, 60, 63, 70, 76, 81, 84, 87, 90, 95, 105, 108, 114, 116, 126, 133, 135, 140, 145, 162, 171, 174, 180, 189, 190, 203, 210, 228, 243, 252, 261, 266, 270, 285, 290, 315, 324, 342, 348, 378, 380, 399, 405, 406, 420, 435, 486, 513, 522, 532, 540, 551, 567, 570, 580, 609, 630, 665, 684, 756, 783, 798, 810, 812, 855, 870, 945, 972, 1015, 1026, 1044, 1102, 1134, 1140, 1197, 1215, 1218, 1260, 1305, 1330, 1539, 1566, 1596, 1620, 1653, 1701, 1710, 1740, 1827, 1890, 1995, 2030, 2052, 2204, 2268, 2349, 2394, 2430, 2436, 2565, 2610, 2660, 2755, 2835, 3045, 3078, 3132, 3306, 3402, 3420, 3591, 3654, 3780, 3857, 3915, 3990, 4060, 4617, 4698, 4788, 4860, 4959, 5130, 5220, 5481, 5510, 5670, 5985, 6090, 6156, 6612, 6804, 7047, 7182, 7308, 7695, 7714, 7830, 7980, 8265, 8505, 9135, 9234, 9396, 9918, 10260, 10773, 10962, 11020, 11340, 11571, 11745, 11970, 12180, 14094, 14364, 14877, 15390, 15428, 15660, 16443, 16530, 17010, 17955, 18270, 18468, 19285, 19836, 21546, 21924, 23085, 23142, 23490, 23940, 24795, 27405, 28188, 29754, 30780, 32319, 32886, 33060, 34020, 34713, 35235, 35910, 36540, 38570, 43092, 44631, 46170, 46284, 46980, 49329, 49590, 53865, 54810, 57855, 59508, 64638, 65772, 69426, 70470, 71820, 74385, 77140, 82215, 89262, 92340, 98658, 99180, 104139, 107730, 109620, 115710, 129276, 133893, 138852, 140940, 148770, 161595, 164430, 173565, 178524, 197316, 208278, 215460, 223155, 231420, 246645, 267786, 297540, 312417, 323190, 328860, 347130, 416556, 446310, 493290, 520695, 535572, 624834, 646380, 669465, 694260, 892620, 937251, 986580, 1041390, 1249668, 1338930, 1562085, 1874502, 2082780, 2677860, 3124170, 3749004, 4686255, 6248340, 9372510, 18745020]

約数ペア:

[(1, 18745020), (2, 9372510), (3, 6248340), (4, 4686255), (5, 3749004), (6, 3124170), (7, 2677860), (9, 2082780), (10, 1874502), (12, 1562085), (14, 1338930), (15, 1249668), (18, 1041390), (19, 986580), (20, 937251), (21, 892620), (27, 694260), (28, 669465), (29, 646380), (30, 624834), (35, 535572), (36, 520695), (38, 493290), (42, 446310), (45, 416556), (54, 347130), (57, 328860), (58, 323190), (60, 312417), (63, 297540), (70, 267786), (76, 246645), (81, 231420), (84, 223155), (87, 215460), (90, 208278), (95, 197316), (105, 178524), (108, 173565), (114, 164430), (116, 161595), (126, 148770), (133, 140940), (135, 138852), (140, 133893), (145, 129276), (162, 115710), (171, 109620), (174, 107730), (180, 104139), (189, 99180), (190, 98658), (203, 92340), (210, 89262), (228, 82215), (243, 77140), (252, 74385), (261, 71820), (266, 70470), (270, 69426), (285, 65772), (290, 64638), (315, 59508), (324, 57855), (342, 54810), (348, 53865), (378, 49590), (380, 49329), (399, 46980), (405, 46284), (406, 46170), (420, 44631), (435, 43092), (486, 38570), (513, 36540), (522, 35910), (532, 35235), (540, 34713), (551, 34020), (567, 33060), (570, 32886), (580, 32319), (609, 30780), (630, 29754), (665, 28188), (684, 27405), (756, 24795), (783, 23940), (798, 23490), (810, 23142), (812, 23085), (855, 21924), (870, 21546), (945, 19836), (972, 19285), (1015, 18468), (1026, 18270), (1044, 17955), (1102, 17010), (1134, 16530), (1140, 16443), (1197, 15660), (1215, 15428), (1218, 15390), (1260, 14877), (1305, 14364), (1330, 14094), (1539, 12180), (1566, 11970), (1596, 11745), (1620, 11571), (1653, 11340), (1701, 11020), (1710, 10962), (1740, 10773), (1827, 10260), (1890, 9918), (1995, 9396), (2030, 9234), (2052, 9135), (2204, 8505), (2268, 8265), (2349, 7980), (2394, 7830), (2430, 7714), (2436, 7695), (2565, 7308), (2610, 7182), (2660, 7047), (2755, 6804), (2835, 6612), (3045, 6156), (3078, 6090), (3132, 5985), (3306, 5670), (3402, 5510), (3420, 5481), (3591, 5220), (3654, 5130), (3780, 4959), (3857, 4860), (3915, 4788), (3990, 4698), (4060, 4617)]