648559980

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{661}}^1$

素因数の和:781

約数の個数: 192

約数和(自身を含む): 2135347200

約数和(自身を除く): 1486787220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 27, 30, 36, 45, 46, 54, 60, 69, 79, 90, 92, 108, 115, 135, 138, 158, 180, 207, 230, 237, 270, 276, 316, 345, 395, 414, 460, 474, 540, 621, 661, 690, 711, 790, 828, 948, 1035, 1185, 1242, 1322, 1380, 1422, 1580, 1817, 1983, 2070, 2133, 2370, 2484, 2644, 2844, 3105, 3305, 3555, 3634, 3966, 4140, 4266, 4740, 5451, 5949, 6210, 6610, 7110, 7268, 7932, 8532, 9085, 9915, 10665, 10902, 11898, 12420, 13220, 14220, 15203, 16353, 17847, 18170, 19830, 21330, 21804, 23796, 27255, 29745, 30406, 32706, 35694, 36340, 39660, 42660, 45609, 49059, 52219, 54510, 59490, 60812, 65412, 71388, 76015, 81765, 89235, 91218, 98118, 104438, 109020, 118980, 136827, 152030, 156657, 163530, 178470, 182436, 196236, 208876, 228045, 245295, 261095, 273654, 304060, 313314, 327060, 356940, 410481, 456090, 469971, 490590, 522190, 547308, 626628, 684135, 783285, 820962, 912180, 939942, 981180, 1044380, 1201037, 1368270, 1409913, 1566570, 1641924, 1879884, 2052405, 2349855, 2402074, 2736540, 2819826, 3133140, 3603111, 4104810, 4699710, 4804148, 5639652, 6005185, 7049565, 7206222, 8209620, 9399420, 10809333, 12010370, 14099130, 14412444, 18015555, 21618666, 24020740, 28198260, 32427999, 36031110, 43237332, 54046665, 64855998, 72062220, 108093330, 129711996, 162139995, 216186660, 324279990, 648559980]

約数ペア:

[(1, 648559980), (2, 324279990), (3, 216186660), (4, 162139995), (5, 129711996), (6, 108093330), (9, 72062220), (10, 64855998), (12, 54046665), (15, 43237332), (18, 36031110), (20, 32427999), (23, 28198260), (27, 24020740), (30, 21618666), (36, 18015555), (45, 14412444), (46, 14099130), (54, 12010370), (60, 10809333), (69, 9399420), (79, 8209620), (90, 7206222), (92, 7049565), (108, 6005185), (115, 5639652), (135, 4804148), (138, 4699710), (158, 4104810), (180, 3603111), (207, 3133140), (230, 2819826), (237, 2736540), (270, 2402074), (276, 2349855), (316, 2052405), (345, 1879884), (395, 1641924), (414, 1566570), (460, 1409913), (474, 1368270), (540, 1201037), (621, 1044380), (661, 981180), (690, 939942), (711, 912180), (790, 820962), (828, 783285), (948, 684135), (1035, 626628), (1185, 547308), (1242, 522190), (1322, 490590), (1380, 469971), (1422, 456090), (1580, 410481), (1817, 356940), (1983, 327060), (2070, 313314), (2133, 304060), (2370, 273654), (2484, 261095), (2644, 245295), (2844, 228045), (3105, 208876), (3305, 196236), (3555, 182436), (3634, 178470), (3966, 163530), (4140, 156657), (4266, 152030), (4740, 136827), (5451, 118980), (5949, 109020), (6210, 104438), (6610, 98118), (7110, 91218), (7268, 89235), (7932, 81765), (8532, 76015), (9085, 71388), (9915, 65412), (10665, 60812), (10902, 59490), (11898, 54510), (12420, 52219), (13220, 49059), (14220, 45609), (15203, 42660), (16353, 39660), (17847, 36340), (18170, 35694), (19830, 32706), (21330, 30406), (21804, 29745), (23796, 27255)]