8347940

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{389}}^1$

素因数の和:464

約数の個数: 48

約数和(自身を含む): 18673200

約数和(自身を除く): 10325260

約数列:

[1, 2, 4, 5, 10, 20, 29, 37, 58, 74, 116, 145, 148, 185, 290, 370, 389, 580, 740, 778, 1073, 1556, 1945, 2146, 3890, 4292, 5365, 7780, 10730, 11281, 14393, 21460, 22562, 28786, 45124, 56405, 57572, 71965, 112810, 143930, 225620, 287860, 417397, 834794, 1669588, 2086985, 4173970, 8347940]

約数ペア:

[(1, 8347940), (2, 4173970), (4, 2086985), (5, 1669588), (10, 834794), (20, 417397), (29, 287860), (37, 225620), (58, 143930), (74, 112810), (116, 71965), (145, 57572), (148, 56405), (185, 45124), (290, 28786), (370, 22562), (389, 21460), (580, 14393), (740, 11281), (778, 10730), (1073, 7780), (1556, 5365), (1945, 4292), (2146, 3890)]