21013200

素因数分解:

$2^4\times 3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{449}}^1$

素因数の和:486

約数の個数: 180

約数和(自身を含む): 78705900

約数和(自身を除く): 57692700

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 25, 26, 30, 36, 39, 40, 45, 48, 50, 52, 60, 65, 72, 75, 78, 80, 90, 100, 104, 117, 120, 130, 144, 150, 156, 180, 195, 200, 208, 225, 234, 240, 260, 300, 312, 325, 360, 390, 400, 449, 450, 468, 520, 585, 600, 624, 650, 720, 780, 898, 900, 936, 975, 1040, 1170, 1200, 1300, 1347, 1560, 1796, 1800, 1872, 1950, 2245, 2340, 2600, 2694, 2925, 3120, 3592, 3600, 3900, 4041, 4490, 4680, 5200, 5388, 5837, 5850, 6735, 7184, 7800, 8082, 8980, 9360, 10776, 11225, 11674, 11700, 13470, 15600, 16164, 17511, 17960, 20205, 21552, 22450, 23348, 23400, 26940, 29185, 32328, 33675, 35022, 35920, 40410, 44900, 46696, 46800, 52533, 53880, 58370, 64656, 67350, 70044, 80820, 87555, 89800, 93392, 101025, 105066, 107760, 116740, 134700, 140088, 145925, 161640, 175110, 179600, 202050, 210132, 233480, 262665, 269400, 280176, 291850, 323280, 350220, 404100, 420264, 437775, 466960, 525330, 538800, 583700, 700440, 808200, 840528, 875550, 1050660, 1167400, 1313325, 1400880, 1616400, 1751100, 2101320, 2334800, 2626650, 3502200, 4202640, 5253300, 7004400, 10506600, 21013200]

約数ペア:

[(1, 21013200), (2, 10506600), (3, 7004400), (4, 5253300), (5, 4202640), (6, 3502200), (8, 2626650), (9, 2334800), (10, 2101320), (12, 1751100), (13, 1616400), (15, 1400880), (16, 1313325), (18, 1167400), (20, 1050660), (24, 875550), (25, 840528), (26, 808200), (30, 700440), (36, 583700), (39, 538800), (40, 525330), (45, 466960), (48, 437775), (50, 420264), (52, 404100), (60, 350220), (65, 323280), (72, 291850), (75, 280176), (78, 269400), (80, 262665), (90, 233480), (100, 210132), (104, 202050), (117, 179600), (120, 175110), (130, 161640), (144, 145925), (150, 140088), (156, 134700), (180, 116740), (195, 107760), (200, 105066), (208, 101025), (225, 93392), (234, 89800), (240, 87555), (260, 80820), (300, 70044), (312, 67350), (325, 64656), (360, 58370), (390, 53880), (400, 52533), (449, 46800), (450, 46696), (468, 44900), (520, 40410), (585, 35920), (600, 35022), (624, 33675), (650, 32328), (720, 29185), (780, 26940), (898, 23400), (900, 23348), (936, 22450), (975, 21552), (1040, 20205), (1170, 17960), (1200, 17511), (1300, 16164), (1347, 15600), (1560, 13470), (1796, 11700), (1800, 11674), (1872, 11225), (1950, 10776), (2245, 9360), (2340, 8980), (2600, 8082), (2694, 7800), (2925, 7184), (3120, 6735), (3592, 5850), (3600, 5837), (3900, 5388), (4041, 5200), (4490, 4680)]