641512.00000000

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{643}}^1$

素因数の和:790

約数の個数: 80

約数和(自身を含む): 122658816

約数和(自身を除く): 76928656

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 127, 140, 254, 280, 508, 560, 635, 643, 889, 1016, 1270, 1286, 1778, 2032, 2540, 2572, 3215, 3556, 4445, 4501, 5080, 5144, 6430, 7112, 8890, 9002, 10160, 10288, 12860, 14224, 17780, 18004, 22505, 25720, 35560, 36008, 45010, 51440, 71120, 72016, 81661, 90020, 163322, 180040, 326644, 360080, 408305, 571627, 653288, 816610, 1143254, 1306576, 1633220, 2286508, 2858135, 3266440, 4573016, 5716270, 6532880, 9146032, 11432540, 22865080, 45730160]

約数ペア:

[(1, 45730160), (2, 22865080), (4, 11432540), (5, 9146032), (7, 6532880), (8, 5716270), (10, 4573016), (14, 3266440), (16, 2858135), (20, 2286508), (28, 1633220), (35, 1306576), (40, 1143254), (56, 816610), (70, 653288), (80, 571627), (112, 408305), (127, 360080), (140, 326644), (254, 180040), (280, 163322), (508, 90020), (560, 81661), (635, 72016), (643, 71120), (889, 51440), (1016, 45010), (1270, 36008), (1286, 35560), (1778, 25720), (2032, 22505), (2540, 18004), (2572, 17780), (3215, 14224), (3556, 12860), (4445, 10288), (4501, 10160), (5080, 9002), (5144, 8890), (6430, 7112)]