640320632

素因数分解:

$2^3\times 7^3\times {\mathrm{233353}}^1$

素因数の和:233380

約数の個数: 32

約数和(自身を含む): 1400124000

約数和(自身を除く): 759803368

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 343, 392, 686, 1372, 2744, 233353, 466706, 933412, 1633471, 1866824, 3266942, 6533884, 11434297, 13067768, 22868594, 45737188, 80040079, 91474376, 160080158, 320160316, 640320632]

約数ペア:

[(1, 640320632), (2, 320160316), (4, 160080158), (7, 91474376), (8, 80040079), (14, 45737188), (28, 22868594), (49, 13067768), (56, 11434297), (98, 6533884), (196, 3266942), (343, 1866824), (392, 1633471), (686, 933412), (1372, 466706), (2744, 233353)]