81958660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{25453}}^1$

素因数の和:25492

約数の個数: 48

約数和(自身を含む): 205261056

約数和(自身を除く): 123302396

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 25453, 50906, 101812, 127265, 178171, 254530, 356342, 509060, 585419, 712684, 890855, 1170838, 1781710, 2341676, 2927095, 3563420, 4097933, 5854190, 8195866, 11708380, 16391732, 20489665, 40979330, 81958660]

約数ペア:

[(1, 81958660), (2, 40979330), (4, 20489665), (5, 16391732), (7, 11708380), (10, 8195866), (14, 5854190), (20, 4097933), (23, 3563420), (28, 2927095), (35, 2341676), (46, 1781710), (70, 1170838), (92, 890855), (115, 712684), (140, 585419), (161, 509060), (230, 356342), (322, 254530), (460, 178171), (644, 127265), (805, 101812), (1610, 50906), (3220, 25453)]