641430720

素因数分解:

$2^6\times 3^2\times 5^1\times 7^1\times {\mathrm{31817}}^1$

素因数の和:31847

約数の個数: 168

約数和(自身を含む): 2521512864

約数和(自身を除く): 1880082144

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 280, 288, 315, 320, 336, 360, 420, 448, 480, 504, 560, 576, 630, 672, 720, 840, 960, 1008, 1120, 1260, 1344, 1440, 1680, 2016, 2240, 2520, 2880, 3360, 4032, 5040, 6720, 10080, 20160, 31817, 63634, 95451, 127268, 159085, 190902, 222719, 254536, 286353, 318170, 381804, 445438, 477255, 509072, 572706, 636340, 668157, 763608, 890876, 954510, 1018144, 1113595, 1145412, 1272680, 1336314, 1431765, 1527216, 1781752, 1909020, 2004471, 2036288, 2227190, 2290824, 2545360, 2672628, 2863530, 3054432, 3340785, 3563504, 3818040, 4008942, 4454380, 4581648, 5090720, 5345256, 5727060, 6108864, 6681570, 7127008, 7636080, 8017884, 8908760, 9163296, 10022355, 10181440, 10690512, 11454120, 13363140, 14254016, 15272160, 16035768, 17817520, 18326592, 20044710, 21381024, 22908240, 26726280, 30544320, 32071536, 35635040, 40089420, 42762048, 45816480, 53452560, 64143072, 71270080, 80178840, 91632960, 106905120, 128286144, 160357680, 213810240, 320715360, 641430720]

約数ペア:

[(1, 641430720), (2, 320715360), (3, 213810240), (4, 160357680), (5, 128286144), (6, 106905120), (7, 91632960), (8, 80178840), (9, 71270080), (10, 64143072), (12, 53452560), (14, 45816480), (15, 42762048), (16, 40089420), (18, 35635040), (20, 32071536), (21, 30544320), (24, 26726280), (28, 22908240), (30, 21381024), (32, 20044710), (35, 18326592), (36, 17817520), (40, 16035768), (42, 15272160), (45, 14254016), (48, 13363140), (56, 11454120), (60, 10690512), (63, 10181440), (64, 10022355), (70, 9163296), (72, 8908760), (80, 8017884), (84, 7636080), (90, 7127008), (96, 6681570), (105, 6108864), (112, 5727060), (120, 5345256), (126, 5090720), (140, 4581648), (144, 4454380), (160, 4008942), (168, 3818040), (180, 3563504), (192, 3340785), (210, 3054432), (224, 2863530), (240, 2672628), (252, 2545360), (280, 2290824), (288, 2227190), (315, 2036288), (320, 2004471), (336, 1909020), (360, 1781752), (420, 1527216), (448, 1431765), (480, 1336314), (504, 1272680), (560, 1145412), (576, 1113595), (630, 1018144), (672, 954510), (720, 890876), (840, 763608), (960, 668157), (1008, 636340), (1120, 572706), (1260, 509072), (1344, 477255), (1440, 445438), (1680, 381804), (2016, 318170), (2240, 286353), (2520, 254536), (2880, 222719), (3360, 190902), (4032, 159085), (5040, 127268), (6720, 95451), (10080, 63634), (20160, 31817)]