20859120

素因数分解:

$2^4\times 3^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1$

素因数の和:94

約数の個数: 240

約数和(自身を含む): 77182560

約数和(自身を除く): 56323440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 29, 30, 36, 37, 40, 45, 48, 54, 58, 60, 72, 74, 80, 81, 87, 90, 108, 111, 116, 120, 135, 144, 145, 148, 162, 174, 180, 185, 216, 222, 232, 240, 243, 261, 270, 290, 296, 324, 333, 348, 360, 370, 405, 432, 435, 444, 464, 486, 522, 540, 555, 580, 592, 648, 666, 696, 720, 740, 783, 810, 870, 888, 972, 999, 1044, 1073, 1080, 1110, 1160, 1215, 1296, 1305, 1332, 1392, 1480, 1566, 1620, 1665, 1740, 1776, 1944, 1998, 2088, 2146, 2160, 2220, 2320, 2349, 2430, 2610, 2664, 2960, 2997, 3132, 3219, 3240, 3330, 3480, 3888, 3915, 3996, 4176, 4292, 4440, 4698, 4860, 4995, 5220, 5328, 5365, 5994, 6264, 6438, 6480, 6660, 6960, 7047, 7830, 7992, 8584, 8880, 8991, 9396, 9657, 9720, 9990, 10440, 10730, 11745, 11988, 12528, 12876, 13320, 14094, 14985, 15660, 15984, 16095, 17168, 17982, 18792, 19314, 19440, 19980, 20880, 21460, 23490, 23976, 25752, 26640, 28188, 28971, 29970, 31320, 32190, 35235, 35964, 37584, 38628, 39960, 42920, 44955, 46980, 47952, 48285, 51504, 56376, 57942, 59940, 62640, 64380, 70470, 71928, 77256, 79920, 85840, 86913, 89910, 93960, 96570, 112752, 115884, 119880, 128760, 140940, 143856, 144855, 154512, 173826, 179820, 187920, 193140, 231768, 239760, 257520, 260739, 281880, 289710, 347652, 359640, 386280, 434565, 463536, 521478, 563760, 579420, 695304, 719280, 772560, 869130, 1042956, 1158840, 1303695, 1390608, 1738260, 2085912, 2317680, 2607390, 3476520, 4171824, 5214780, 6953040, 10429560, 20859120]

約数ペア:

[(1, 20859120), (2, 10429560), (3, 6953040), (4, 5214780), (5, 4171824), (6, 3476520), (8, 2607390), (9, 2317680), (10, 2085912), (12, 1738260), (15, 1390608), (16, 1303695), (18, 1158840), (20, 1042956), (24, 869130), (27, 772560), (29, 719280), (30, 695304), (36, 579420), (37, 563760), (40, 521478), (45, 463536), (48, 434565), (54, 386280), (58, 359640), (60, 347652), (72, 289710), (74, 281880), (80, 260739), (81, 257520), (87, 239760), (90, 231768), (108, 193140), (111, 187920), (116, 179820), (120, 173826), (135, 154512), (144, 144855), (145, 143856), (148, 140940), (162, 128760), (174, 119880), (180, 115884), (185, 112752), (216, 96570), (222, 93960), (232, 89910), (240, 86913), (243, 85840), (261, 79920), (270, 77256), (290, 71928), (296, 70470), (324, 64380), (333, 62640), (348, 59940), (360, 57942), (370, 56376), (405, 51504), (432, 48285), (435, 47952), (444, 46980), (464, 44955), (486, 42920), (522, 39960), (540, 38628), (555, 37584), (580, 35964), (592, 35235), (648, 32190), (666, 31320), (696, 29970), (720, 28971), (740, 28188), (783, 26640), (810, 25752), (870, 23976), (888, 23490), (972, 21460), (999, 20880), (1044, 19980), (1073, 19440), (1080, 19314), (1110, 18792), (1160, 17982), (1215, 17168), (1296, 16095), (1305, 15984), (1332, 15660), (1392, 14985), (1480, 14094), (1566, 13320), (1620, 12876), (1665, 12528), (1740, 11988), (1776, 11745), (1944, 10730), (1998, 10440), (2088, 9990), (2146, 9720), (2160, 9657), (2220, 9396), (2320, 8991), (2349, 8880), (2430, 8584), (2610, 7992), (2664, 7830), (2960, 7047), (2997, 6960), (3132, 6660), (3219, 6480), (3240, 6438), (3330, 6264), (3480, 5994), (3888, 5365), (3915, 5328), (3996, 5220), (4176, 4995), (4292, 4860), (4440, 4698)]