640970400

素因数分解:

$2^5\times 3^1\times 5^2\times 7^1\times {\mathrm{38153}}^1$

素因数の和:38183

約数の個数: 144

約数和(自身を含む): 2384472384

約数和(自身を除く): 1743501984

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 25, 28, 30, 32, 35, 40, 42, 48, 50, 56, 60, 70, 75, 80, 84, 96, 100, 105, 112, 120, 140, 150, 160, 168, 175, 200, 210, 224, 240, 280, 300, 336, 350, 400, 420, 480, 525, 560, 600, 672, 700, 800, 840, 1050, 1120, 1200, 1400, 1680, 2100, 2400, 2800, 3360, 4200, 5600, 8400, 16800, 38153, 76306, 114459, 152612, 190765, 228918, 267071, 305224, 381530, 457836, 534142, 572295, 610448, 763060, 801213, 915672, 953825, 1068284, 1144590, 1220896, 1335355, 1526120, 1602426, 1831344, 1907650, 2136568, 2289180, 2670710, 2861475, 3052240, 3204852, 3662688, 3815300, 4006065, 4273136, 4578360, 5341420, 5722950, 6104480, 6409704, 6676775, 7630600, 8012130, 8546272, 9156720, 10682840, 11445900, 12819408, 13353550, 15261200, 16024260, 18313440, 20030325, 21365680, 22891800, 25638816, 26707100, 30522400, 32048520, 40060650, 42731360, 45783600, 53414200, 64097040, 80121300, 91567200, 106828400, 128194080, 160242600, 213656800, 320485200, 640970400]

約数ペア:

[(1, 640970400), (2, 320485200), (3, 213656800), (4, 160242600), (5, 128194080), (6, 106828400), (7, 91567200), (8, 80121300), (10, 64097040), (12, 53414200), (14, 45783600), (15, 42731360), (16, 40060650), (20, 32048520), (21, 30522400), (24, 26707100), (25, 25638816), (28, 22891800), (30, 21365680), (32, 20030325), (35, 18313440), (40, 16024260), (42, 15261200), (48, 13353550), (50, 12819408), (56, 11445900), (60, 10682840), (70, 9156720), (75, 8546272), (80, 8012130), (84, 7630600), (96, 6676775), (100, 6409704), (105, 6104480), (112, 5722950), (120, 5341420), (140, 4578360), (150, 4273136), (160, 4006065), (168, 3815300), (175, 3662688), (200, 3204852), (210, 3052240), (224, 2861475), (240, 2670710), (280, 2289180), (300, 2136568), (336, 1907650), (350, 1831344), (400, 1602426), (420, 1526120), (480, 1335355), (525, 1220896), (560, 1144590), (600, 1068284), (672, 953825), (700, 915672), (800, 801213), (840, 763060), (1050, 610448), (1120, 572295), (1200, 534142), (1400, 457836), (1680, 381530), (2100, 305224), (2400, 267071), (2800, 228918), (3360, 190765), (4200, 152612), (5600, 114459), (8400, 76306), (16800, 38153)]