515648240

素因数分解:

$2^4\times 5^1\times {\mathrm{1979}}^1\times {\mathrm{3257}}^1$

素因数の和:5249

約数の個数: 40

約数和(自身を含む): 1199856240

約数和(自身を除く): 684208000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1979, 3257, 3958, 6514, 7916, 9895, 13028, 15832, 16285, 19790, 26056, 31664, 32570, 39580, 52112, 65140, 79160, 130280, 158320, 260560, 6445603, 12891206, 25782412, 32228015, 51564824, 64456030, 103129648, 128912060, 257824120, 515648240]

約数ペア:

[(1, 515648240), (2, 257824120), (4, 128912060), (5, 103129648), (8, 64456030), (10, 51564824), (16, 32228015), (20, 25782412), (40, 12891206), (80, 6445603), (1979, 260560), (3257, 158320), (3958, 130280), (6514, 79160), (7916, 65140), (9895, 52112), (13028, 39580), (15832, 32570), (16285, 31664), (19790, 26056)]