20444400

素因数分解:

$2^4\times 3^4\times 5^2\times {\mathrm{631}}^1$

素因数の和:661

約数の個数: 150

約数和(自身を含む): 73489592

約数和(自身を除く): 53045192

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 27, 30, 36, 40, 45, 48, 50, 54, 60, 72, 75, 80, 81, 90, 100, 108, 120, 135, 144, 150, 162, 180, 200, 216, 225, 240, 270, 300, 324, 360, 400, 405, 432, 450, 540, 600, 631, 648, 675, 720, 810, 900, 1080, 1200, 1262, 1296, 1350, 1620, 1800, 1893, 2025, 2160, 2524, 2700, 3155, 3240, 3600, 3786, 4050, 5048, 5400, 5679, 6310, 6480, 7572, 8100, 9465, 10096, 10800, 11358, 12620, 15144, 15775, 16200, 17037, 18930, 22716, 25240, 28395, 30288, 31550, 32400, 34074, 37860, 45432, 47325, 50480, 51111, 56790, 63100, 68148, 75720, 85185, 90864, 94650, 102222, 113580, 126200, 136296, 141975, 151440, 170370, 189300, 204444, 227160, 252400, 255555, 272592, 283950, 340740, 378600, 408888, 425925, 454320, 511110, 567900, 681480, 757200, 817776, 851850, 1022220, 1135800, 1277775, 1362960, 1703700, 2044440, 2271600, 2555550, 3407400, 4088880, 5111100, 6814800, 10222200, 20444400]

約数ペア:

[(1, 20444400), (2, 10222200), (3, 6814800), (4, 5111100), (5, 4088880), (6, 3407400), (8, 2555550), (9, 2271600), (10, 2044440), (12, 1703700), (15, 1362960), (16, 1277775), (18, 1135800), (20, 1022220), (24, 851850), (25, 817776), (27, 757200), (30, 681480), (36, 567900), (40, 511110), (45, 454320), (48, 425925), (50, 408888), (54, 378600), (60, 340740), (72, 283950), (75, 272592), (80, 255555), (81, 252400), (90, 227160), (100, 204444), (108, 189300), (120, 170370), (135, 151440), (144, 141975), (150, 136296), (162, 126200), (180, 113580), (200, 102222), (216, 94650), (225, 90864), (240, 85185), (270, 75720), (300, 68148), (324, 63100), (360, 56790), (400, 51111), (405, 50480), (432, 47325), (450, 45432), (540, 37860), (600, 34074), (631, 32400), (648, 31550), (675, 30288), (720, 28395), (810, 25240), (900, 22716), (1080, 18930), (1200, 17037), (1262, 16200), (1296, 15775), (1350, 15144), (1620, 12620), (1800, 11358), (1893, 10800), (2025, 10096), (2160, 9465), (2524, 8100), (2700, 7572), (3155, 6480), (3240, 6310), (3600, 5679), (3786, 5400), (4050, 5048)]