642401280

素因数分解:

$2^{10}\times 3^4\times 5^1\times {\mathrm{1549}}^1$

素因数の和:1586

約数の個数: 220

約数和(自身を含む): 2303489100

約数和(自身を除く): 1661087820

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 81, 90, 96, 108, 120, 128, 135, 144, 160, 162, 180, 192, 216, 240, 256, 270, 288, 320, 324, 360, 384, 405, 432, 480, 512, 540, 576, 640, 648, 720, 768, 810, 864, 960, 1024, 1080, 1152, 1280, 1296, 1440, 1536, 1549, 1620, 1728, 1920, 2160, 2304, 2560, 2592, 2880, 3072, 3098, 3240, 3456, 3840, 4320, 4608, 4647, 5120, 5184, 5760, 6196, 6480, 6912, 7680, 7745, 8640, 9216, 9294, 10368, 11520, 12392, 12960, 13824, 13941, 15360, 15490, 17280, 18588, 20736, 23040, 23235, 24784, 25920, 27648, 27882, 30980, 34560, 37176, 41472, 41823, 46080, 46470, 49568, 51840, 55764, 61960, 69120, 69705, 74352, 82944, 83646, 92940, 99136, 103680, 111528, 123920, 125469, 138240, 139410, 148704, 167292, 185880, 198272, 207360, 209115, 223056, 247840, 250938, 278820, 297408, 334584, 371760, 396544, 414720, 418230, 446112, 495680, 501876, 557640, 594816, 627345, 669168, 743520, 793088, 836460, 892224, 991360, 1003752, 1115280, 1189632, 1254690, 1338336, 1487040, 1586176, 1672920, 1784448, 1982720, 2007504, 2230560, 2379264, 2509380, 2676672, 2974080, 3345840, 3568896, 3965440, 4015008, 4461120, 4758528, 5018760, 5353344, 5948160, 6691680, 7137792, 7930880, 8030016, 8922240, 10037520, 10706688, 11896320, 13383360, 14275584, 16060032, 17844480, 20075040, 21413376, 23792640, 26766720, 32120064, 35688960, 40150080, 42826752, 53533440, 64240128, 71377920, 80300160, 107066880, 128480256, 160600320, 214133760, 321200640, 642401280]

約数ペア:

[(1, 642401280), (2, 321200640), (3, 214133760), (4, 160600320), (5, 128480256), (6, 107066880), (8, 80300160), (9, 71377920), (10, 64240128), (12, 53533440), (15, 42826752), (16, 40150080), (18, 35688960), (20, 32120064), (24, 26766720), (27, 23792640), (30, 21413376), (32, 20075040), (36, 17844480), (40, 16060032), (45, 14275584), (48, 13383360), (54, 11896320), (60, 10706688), (64, 10037520), (72, 8922240), (80, 8030016), (81, 7930880), (90, 7137792), (96, 6691680), (108, 5948160), (120, 5353344), (128, 5018760), (135, 4758528), (144, 4461120), (160, 4015008), (162, 3965440), (180, 3568896), (192, 3345840), (216, 2974080), (240, 2676672), (256, 2509380), (270, 2379264), (288, 2230560), (320, 2007504), (324, 1982720), (360, 1784448), (384, 1672920), (405, 1586176), (432, 1487040), (480, 1338336), (512, 1254690), (540, 1189632), (576, 1115280), (640, 1003752), (648, 991360), (720, 892224), (768, 836460), (810, 793088), (864, 743520), (960, 669168), (1024, 627345), (1080, 594816), (1152, 557640), (1280, 501876), (1296, 495680), (1440, 446112), (1536, 418230), (1549, 414720), (1620, 396544), (1728, 371760), (1920, 334584), (2160, 297408), (2304, 278820), (2560, 250938), (2592, 247840), (2880, 223056), (3072, 209115), (3098, 207360), (3240, 198272), (3456, 185880), (3840, 167292), (4320, 148704), (4608, 139410), (4647, 138240), (5120, 125469), (5184, 123920), (5760, 111528), (6196, 103680), (6480, 99136), (6912, 92940), (7680, 83646), (7745, 82944), (8640, 74352), (9216, 69705), (9294, 69120), (10368, 61960), (11520, 55764), (12392, 51840), (12960, 49568), (13824, 46470), (13941, 46080), (15360, 41823), (15490, 41472), (17280, 37176), (18588, 34560), (20736, 30980), (23040, 27882), (23235, 27648), (24784, 25920)]