644494320

素因数分解:

$2^4\times 3^6\times 5^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1$

素因数の和:331

約数の個数: 280

約数和(自身を含む): 2307838896

約数和(自身を除く): 1663344576

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 43, 45, 48, 54, 60, 72, 80, 81, 86, 90, 108, 120, 129, 135, 144, 162, 172, 180, 215, 216, 240, 243, 257, 258, 270, 324, 344, 360, 387, 405, 430, 432, 486, 514, 516, 540, 645, 648, 688, 720, 729, 771, 774, 810, 860, 972, 1028, 1032, 1080, 1161, 1215, 1285, 1290, 1296, 1458, 1542, 1548, 1620, 1720, 1935, 1944, 2056, 2064, 2160, 2313, 2322, 2430, 2570, 2580, 2916, 3084, 3096, 3240, 3440, 3483, 3645, 3855, 3870, 3888, 4112, 4626, 4644, 4860, 5140, 5160, 5805, 5832, 6168, 6192, 6480, 6939, 6966, 7290, 7710, 7740, 9252, 9288, 9720, 10280, 10320, 10449, 11051, 11565, 11610, 11664, 12336, 13878, 13932, 14580, 15420, 15480, 17415, 18504, 18576, 19440, 20560, 20817, 20898, 22102, 23130, 23220, 27756, 27864, 29160, 30840, 30960, 31347, 33153, 34695, 34830, 37008, 41634, 41796, 44204, 46260, 46440, 52245, 55255, 55512, 55728, 58320, 61680, 62451, 62694, 66306, 69390, 69660, 83268, 83592, 88408, 92520, 92880, 99459, 104085, 104490, 110510, 111024, 124902, 125388, 132612, 138780, 139320, 156735, 165765, 166536, 167184, 176816, 185040, 187353, 198918, 208170, 208980, 221020, 249804, 250776, 265224, 277560, 278640, 298377, 312255, 313470, 331530, 333072, 374706, 397836, 416340, 417960, 442040, 497295, 499608, 501552, 530448, 555120, 596754, 624510, 626940, 663060, 749412, 795672, 832680, 835920, 884080, 895131, 936765, 994590, 999216, 1193508, 1249020, 1253880, 1326120, 1491885, 1498824, 1591344, 1665360, 1790262, 1873530, 1989180, 2387016, 2498040, 2507760, 2652240, 2685393, 2983770, 2997648, 3580524, 3747060, 3978360, 4475655, 4774032, 4996080, 5370786, 5967540, 7161048, 7494120, 7956720, 8056179, 8951310, 10741572, 11935080, 13426965, 14322096, 14988240, 16112358, 17902620, 21483144, 23870160, 26853930, 32224716, 35805240, 40280895, 42966288, 53707860, 64449432, 71610480, 80561790, 107415720, 128898864, 161123580, 214831440, 322247160, 644494320]

約数ペア:

[(1, 644494320), (2, 322247160), (3, 214831440), (4, 161123580), (5, 128898864), (6, 107415720), (8, 80561790), (9, 71610480), (10, 64449432), (12, 53707860), (15, 42966288), (16, 40280895), (18, 35805240), (20, 32224716), (24, 26853930), (27, 23870160), (30, 21483144), (36, 17902620), (40, 16112358), (43, 14988240), (45, 14322096), (48, 13426965), (54, 11935080), (60, 10741572), (72, 8951310), (80, 8056179), (81, 7956720), (86, 7494120), (90, 7161048), (108, 5967540), (120, 5370786), (129, 4996080), (135, 4774032), (144, 4475655), (162, 3978360), (172, 3747060), (180, 3580524), (215, 2997648), (216, 2983770), (240, 2685393), (243, 2652240), (257, 2507760), (258, 2498040), (270, 2387016), (324, 1989180), (344, 1873530), (360, 1790262), (387, 1665360), (405, 1591344), (430, 1498824), (432, 1491885), (486, 1326120), (514, 1253880), (516, 1249020), (540, 1193508), (645, 999216), (648, 994590), (688, 936765), (720, 895131), (729, 884080), (771, 835920), (774, 832680), (810, 795672), (860, 749412), (972, 663060), (1028, 626940), (1032, 624510), (1080, 596754), (1161, 555120), (1215, 530448), (1285, 501552), (1290, 499608), (1296, 497295), (1458, 442040), (1542, 417960), (1548, 416340), (1620, 397836), (1720, 374706), (1935, 333072), (1944, 331530), (2056, 313470), (2064, 312255), (2160, 298377), (2313, 278640), (2322, 277560), (2430, 265224), (2570, 250776), (2580, 249804), (2916, 221020), (3084, 208980), (3096, 208170), (3240, 198918), (3440, 187353), (3483, 185040), (3645, 176816), (3855, 167184), (3870, 166536), (3888, 165765), (4112, 156735), (4626, 139320), (4644, 138780), (4860, 132612), (5140, 125388), (5160, 124902), (5805, 111024), (5832, 110510), (6168, 104490), (6192, 104085), (6480, 99459), (6939, 92880), (6966, 92520), (7290, 88408), (7710, 83592), (7740, 83268), (9252, 69660), (9288, 69390), (9720, 66306), (10280, 62694), (10320, 62451), (10449, 61680), (11051, 58320), (11565, 55728), (11610, 55512), (11664, 55255), (12336, 52245), (13878, 46440), (13932, 46260), (14580, 44204), (15420, 41796), (15480, 41634), (17415, 37008), (18504, 34830), (18576, 34695), (19440, 33153), (20560, 31347), (20817, 30960), (20898, 30840), (22102, 29160), (23130, 27864), (23220, 27756)]