1285018840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{353}}^1\times {\mathrm{13001}}^1$

素因数の和:13372

約数の個数: 64

約数和(自身を含む): 3313949760

約数和(自身を除く): 2028930920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 353, 706, 1412, 1765, 2471, 2824, 3530, 4942, 7060, 9884, 12355, 13001, 14120, 19768, 24710, 26002, 49420, 52004, 65005, 91007, 98840, 104008, 130010, 182014, 260020, 364028, 455035, 520040, 728056, 910070, 1820140, 3640280, 4589353, 9178706, 18357412, 22946765, 32125471, 36714824, 45893530, 64250942, 91787060, 128501884, 160627355, 183574120, 257003768, 321254710, 642509420, 1285018840]

約数ペア:

[(1, 1285018840), (2, 642509420), (4, 321254710), (5, 257003768), (7, 183574120), (8, 160627355), (10, 128501884), (14, 91787060), (20, 64250942), (28, 45893530), (35, 36714824), (40, 32125471), (56, 22946765), (70, 18357412), (140, 9178706), (280, 4589353), (353, 3640280), (706, 1820140), (1412, 910070), (1765, 728056), (2471, 520040), (2824, 455035), (3530, 364028), (4942, 260020), (7060, 182014), (9884, 130010), (12355, 104008), (13001, 98840), (14120, 91007), (19768, 65005), (24710, 52004), (26002, 49420)]