349701980

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{383}}^1\times {\mathrm{643}}^1$

素因数の和:1106

約数の個数: 48

約数和(自身を含む): 747823104

約数和(自身を除く): 398121124

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 383, 643, 710, 766, 1286, 1420, 1532, 1915, 2572, 3215, 3830, 6430, 7660, 12860, 27193, 45653, 54386, 91306, 108772, 135965, 182612, 228265, 246269, 271930, 456530, 492538, 543860, 913060, 985076, 1231345, 2462690, 4925380, 17485099, 34970198, 69940396, 87425495, 174850990, 349701980]

約数ペア:

[(1, 349701980), (2, 174850990), (4, 87425495), (5, 69940396), (10, 34970198), (20, 17485099), (71, 4925380), (142, 2462690), (284, 1231345), (355, 985076), (383, 913060), (643, 543860), (710, 492538), (766, 456530), (1286, 271930), (1420, 246269), (1532, 228265), (1915, 182612), (2572, 135965), (3215, 108772), (3830, 91306), (6430, 54386), (7660, 45653), (12860, 27193)]