20451234240

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{661}}^1\times {\mathrm{3581}}^1$

素因数の和:4268

約数の個数: 224

約数和(自身を含む): 72276736320

約数和(自身を除く): 51825502080

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, 90, 96, 108, 120, 135, 144, 160, 180, 192, 216, 240, 270, 288, 320, 360, 432, 480, 540, 576, 661, 720, 864, 960, 1080, 1322, 1440, 1728, 1983, 2160, 2644, 2880, 3305, 3581, 3966, 4320, 5288, 5949, 6610, 7162, 7932, 8640, 9915, 10576, 10743, 11898, 13220, 14324, 15864, 17847, 17905, 19830, 21152, 21486, 23796, 26440, 28648, 29745, 31728, 32229, 35694, 35810, 39660, 42304, 42972, 47592, 52880, 53715, 57296, 59490, 63456, 64458, 71388, 71620, 79320, 85944, 89235, 95184, 96687, 105760, 107430, 114592, 118980, 126912, 128916, 142776, 143240, 158640, 161145, 171888, 178470, 190368, 193374, 211520, 214860, 229184, 237960, 257832, 285552, 286480, 317280, 322290, 343776, 356940, 380736, 386748, 429720, 475920, 483435, 515664, 571104, 572960, 634560, 644580, 687552, 713880, 773496, 859440, 951840, 966870, 1031328, 1142208, 1145920, 1289160, 1427760, 1546992, 1718880, 1903680, 1933740, 2062656, 2367041, 2578320, 2855520, 3093984, 3437760, 3867480, 4734082, 5156640, 5711040, 6187968, 7101123, 7734960, 9468164, 10313280, 11835205, 14202246, 15469920, 18936328, 21303369, 23670410, 28404492, 30939840, 35505615, 37872656, 42606738, 47340820, 56808984, 63910107, 71011230, 75745312, 85213476, 94681640, 106516845, 113617968, 127820214, 142022460, 151490624, 170426952, 189363280, 213033690, 227235936, 255640428, 284044920, 319550535, 340853904, 378726560, 426067380, 454471872, 511280856, 568089840, 639101070, 681707808, 757453120, 852134760, 1022561712, 1136179680, 1278202140, 1363415616, 1704269520, 2045123424, 2272359360, 2556404280, 3408539040, 4090246848, 5112808560, 6817078080, 10225617120, 20451234240]

約数ペア:

[(1, 20451234240), (2, 10225617120), (3, 6817078080), (4, 5112808560), (5, 4090246848), (6, 3408539040), (8, 2556404280), (9, 2272359360), (10, 2045123424), (12, 1704269520), (15, 1363415616), (16, 1278202140), (18, 1136179680), (20, 1022561712), (24, 852134760), (27, 757453120), (30, 681707808), (32, 639101070), (36, 568089840), (40, 511280856), (45, 454471872), (48, 426067380), (54, 378726560), (60, 340853904), (64, 319550535), (72, 284044920), (80, 255640428), (90, 227235936), (96, 213033690), (108, 189363280), (120, 170426952), (135, 151490624), (144, 142022460), (160, 127820214), (180, 113617968), (192, 106516845), (216, 94681640), (240, 85213476), (270, 75745312), (288, 71011230), (320, 63910107), (360, 56808984), (432, 47340820), (480, 42606738), (540, 37872656), (576, 35505615), (661, 30939840), (720, 28404492), (864, 23670410), (960, 21303369), (1080, 18936328), (1322, 15469920), (1440, 14202246), (1728, 11835205), (1983, 10313280), (2160, 9468164), (2644, 7734960), (2880, 7101123), (3305, 6187968), (3581, 5711040), (3966, 5156640), (4320, 4734082), (5288, 3867480), (5949, 3437760), (6610, 3093984), (7162, 2855520), (7932, 2578320), (8640, 2367041), (9915, 2062656), (10576, 1933740), (10743, 1903680), (11898, 1718880), (13220, 1546992), (14324, 1427760), (15864, 1289160), (17847, 1145920), (17905, 1142208), (19830, 1031328), (21152, 966870), (21486, 951840), (23796, 859440), (26440, 773496), (28648, 713880), (29745, 687552), (31728, 644580), (32229, 634560), (35694, 572960), (35810, 571104), (39660, 515664), (42304, 483435), (42972, 475920), (47592, 429720), (52880, 386748), (53715, 380736), (57296, 356940), (59490, 343776), (63456, 322290), (64458, 317280), (71388, 286480), (71620, 285552), (79320, 257832), (85944, 237960), (89235, 229184), (95184, 214860), (96687, 211520), (105760, 193374), (107430, 190368), (114592, 178470), (118980, 171888), (126912, 161145), (128916, 158640), (142776, 143240)]