263291470

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{8069}}^1$

素因数の和:8340

約数の個数: 32

約数和(自身を含む): 512477280

約数和(自身を除く): 249185810

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 251, 502, 1255, 2510, 3263, 6526, 8069, 16138, 16315, 32630, 40345, 80690, 104897, 209794, 524485, 1048970, 2025319, 4050638, 10126595, 20253190, 26329147, 52658294, 131645735, 263291470]

約数ペア:

[(1, 263291470), (2, 131645735), (5, 52658294), (10, 26329147), (13, 20253190), (26, 10126595), (65, 4050638), (130, 2025319), (251, 1048970), (502, 524485), (1255, 209794), (2510, 104897), (3263, 80690), (6526, 40345), (8069, 32630), (16138, 16315)]