21490181280

素因数分解:

$2^5\times 3^5\times 5^1\times {\mathrm{552731}}^1$

素因数の和:552761

約数の個数: 144

約数和(自身を含む): 76051501344

約数和(自身を除く): 54561320064

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, 72, 80, 81, 90, 96, 108, 120, 135, 144, 160, 162, 180, 216, 240, 243, 270, 288, 324, 360, 405, 432, 480, 486, 540, 648, 720, 810, 864, 972, 1080, 1215, 1296, 1440, 1620, 1944, 2160, 2430, 2592, 3240, 3888, 4320, 4860, 6480, 7776, 9720, 12960, 19440, 38880, 552731, 1105462, 1658193, 2210924, 2763655, 3316386, 4421848, 4974579, 5527310, 6632772, 8290965, 8843696, 9949158, 11054620, 13265544, 14923737, 16581930, 17687392, 19898316, 22109240, 24872895, 26531088, 29847474, 33163860, 39796632, 44218480, 44771211, 49745790, 53062176, 59694948, 66327720, 74618685, 79593264, 88436960, 89542422, 99491580, 119389896, 132655440, 134313633, 149237370, 159186528, 179084844, 198983160, 223856055, 238779792, 265310880, 268627266, 298474740, 358169688, 397966320, 447712110, 477559584, 537254532, 596949480, 671568165, 716339376, 795932640, 895424220, 1074509064, 1193898960, 1343136330, 1432678752, 1790848440, 2149018128, 2387797920, 2686272660, 3581696880, 4298036256, 5372545320, 7163393760, 10745090640, 21490181280]

約数ペア:

[(1, 21490181280), (2, 10745090640), (3, 7163393760), (4, 5372545320), (5, 4298036256), (6, 3581696880), (8, 2686272660), (9, 2387797920), (10, 2149018128), (12, 1790848440), (15, 1432678752), (16, 1343136330), (18, 1193898960), (20, 1074509064), (24, 895424220), (27, 795932640), (30, 716339376), (32, 671568165), (36, 596949480), (40, 537254532), (45, 477559584), (48, 447712110), (54, 397966320), (60, 358169688), (72, 298474740), (80, 268627266), (81, 265310880), (90, 238779792), (96, 223856055), (108, 198983160), (120, 179084844), (135, 159186528), (144, 149237370), (160, 134313633), (162, 132655440), (180, 119389896), (216, 99491580), (240, 89542422), (243, 88436960), (270, 79593264), (288, 74618685), (324, 66327720), (360, 59694948), (405, 53062176), (432, 49745790), (480, 44771211), (486, 44218480), (540, 39796632), (648, 33163860), (720, 29847474), (810, 26531088), (864, 24872895), (972, 22109240), (1080, 19898316), (1215, 17687392), (1296, 16581930), (1440, 14923737), (1620, 13265544), (1944, 11054620), (2160, 9949158), (2430, 8843696), (2592, 8290965), (3240, 6632772), (3888, 5527310), (4320, 4974579), (4860, 4421848), (6480, 3316386), (7776, 2763655), (9720, 2210924), (12960, 1658193), (19440, 1105462), (38880, 552731)]