18701280

素因数分解:

$2^5\times 3^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1$

素因数の和:80

約数の個数: 288

約数和(自身を含む): 73198944

約数和(自身を除く): 54497664

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 32, 36, 37, 39, 40, 45, 48, 52, 54, 60, 65, 72, 74, 78, 80, 81, 90, 96, 104, 108, 111, 117, 120, 130, 135, 144, 148, 156, 160, 162, 180, 185, 195, 208, 216, 222, 234, 240, 243, 260, 270, 288, 296, 312, 324, 333, 351, 360, 370, 390, 405, 416, 432, 444, 468, 480, 481, 486, 520, 540, 555, 585, 592, 624, 648, 666, 702, 720, 740, 780, 810, 864, 888, 936, 962, 972, 999, 1040, 1053, 1080, 1110, 1170, 1184, 1215, 1248, 1296, 1332, 1404, 1440, 1443, 1480, 1560, 1620, 1665, 1755, 1776, 1872, 1924, 1944, 1998, 2080, 2106, 2160, 2220, 2340, 2405, 2430, 2592, 2664, 2808, 2886, 2960, 2997, 3120, 3159, 3240, 3330, 3510, 3552, 3744, 3848, 3888, 3996, 4212, 4320, 4329, 4440, 4680, 4810, 4860, 4995, 5265, 5328, 5616, 5772, 5920, 5994, 6240, 6318, 6480, 6660, 7020, 7215, 7696, 7776, 7992, 8424, 8658, 8880, 8991, 9360, 9620, 9720, 9990, 10530, 10656, 11232, 11544, 11988, 12636, 12960, 12987, 13320, 14040, 14430, 14985, 15392, 15795, 15984, 16848, 17316, 17760, 17982, 18720, 19240, 19440, 19980, 21060, 21645, 23088, 23976, 25272, 25974, 26640, 28080, 28860, 29970, 31590, 31968, 33696, 34632, 35964, 38480, 38880, 38961, 39960, 42120, 43290, 44955, 46176, 47952, 50544, 51948, 53280, 56160, 57720, 59940, 63180, 64935, 69264, 71928, 76960, 77922, 79920, 84240, 86580, 89910, 95904, 101088, 103896, 115440, 116883, 119880, 126360, 129870, 138528, 143856, 155844, 159840, 168480, 173160, 179820, 194805, 207792, 230880, 233766, 239760, 252720, 259740, 287712, 311688, 346320, 359640, 389610, 415584, 467532, 479520, 505440, 519480, 584415, 623376, 692640, 719280, 779220, 935064, 1038960, 1168830, 1246752, 1438560, 1558440, 1870128, 2077920, 2337660, 3116880, 3740256, 4675320, 6233760, 9350640, 18701280]

約数ペア:

[(1, 18701280), (2, 9350640), (3, 6233760), (4, 4675320), (5, 3740256), (6, 3116880), (8, 2337660), (9, 2077920), (10, 1870128), (12, 1558440), (13, 1438560), (15, 1246752), (16, 1168830), (18, 1038960), (20, 935064), (24, 779220), (26, 719280), (27, 692640), (30, 623376), (32, 584415), (36, 519480), (37, 505440), (39, 479520), (40, 467532), (45, 415584), (48, 389610), (52, 359640), (54, 346320), (60, 311688), (65, 287712), (72, 259740), (74, 252720), (78, 239760), (80, 233766), (81, 230880), (90, 207792), (96, 194805), (104, 179820), (108, 173160), (111, 168480), (117, 159840), (120, 155844), (130, 143856), (135, 138528), (144, 129870), (148, 126360), (156, 119880), (160, 116883), (162, 115440), (180, 103896), (185, 101088), (195, 95904), (208, 89910), (216, 86580), (222, 84240), (234, 79920), (240, 77922), (243, 76960), (260, 71928), (270, 69264), (288, 64935), (296, 63180), (312, 59940), (324, 57720), (333, 56160), (351, 53280), (360, 51948), (370, 50544), (390, 47952), (405, 46176), (416, 44955), (432, 43290), (444, 42120), (468, 39960), (480, 38961), (481, 38880), (486, 38480), (520, 35964), (540, 34632), (555, 33696), (585, 31968), (592, 31590), (624, 29970), (648, 28860), (666, 28080), (702, 26640), (720, 25974), (740, 25272), (780, 23976), (810, 23088), (864, 21645), (888, 21060), (936, 19980), (962, 19440), (972, 19240), (999, 18720), (1040, 17982), (1053, 17760), (1080, 17316), (1110, 16848), (1170, 15984), (1184, 15795), (1215, 15392), (1248, 14985), (1296, 14430), (1332, 14040), (1404, 13320), (1440, 12987), (1443, 12960), (1480, 12636), (1560, 11988), (1620, 11544), (1665, 11232), (1755, 10656), (1776, 10530), (1872, 9990), (1924, 9720), (1944, 9620), (1998, 9360), (2080, 8991), (2106, 8880), (2160, 8658), (2220, 8424), (2340, 7992), (2405, 7776), (2430, 7696), (2592, 7215), (2664, 7020), (2808, 6660), (2886, 6480), (2960, 6318), (2997, 6240), (3120, 5994), (3159, 5920), (3240, 5772), (3330, 5616), (3510, 5328), (3552, 5265), (3744, 4995), (3848, 4860), (3888, 4810), (3996, 4680), (4212, 4440), (4320, 4329)]