18843160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{389}}^1$

素因数の和:580

約数の個数: 64

約数和(自身を含む): 48859200

約数和(自身を除く): 30016040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 173, 280, 346, 389, 692, 778, 865, 1211, 1384, 1556, 1730, 1945, 2422, 2723, 3112, 3460, 3890, 4844, 5446, 6055, 6920, 7780, 9688, 10892, 12110, 13615, 15560, 21784, 24220, 27230, 48440, 54460, 67297, 108920, 134594, 269188, 336485, 471079, 538376, 672970, 942158, 1345940, 1884316, 2355395, 2691880, 3768632, 4710790, 9421580, 18843160]

約数ペア:

[(1, 18843160), (2, 9421580), (4, 4710790), (5, 3768632), (7, 2691880), (8, 2355395), (10, 1884316), (14, 1345940), (20, 942158), (28, 672970), (35, 538376), (40, 471079), (56, 336485), (70, 269188), (140, 134594), (173, 108920), (280, 67297), (346, 54460), (389, 48440), (692, 27230), (778, 24220), (865, 21784), (1211, 15560), (1384, 13615), (1556, 12110), (1730, 10892), (1945, 9688), (2422, 7780), (2723, 6920), (3112, 6055), (3460, 5446), (3890, 4844)]