64621816

素因数分解:

$2^3\times 7^1\times {\mathrm{421}}^1\times {\mathrm{2741}}^1$

素因数の和:3175

約数の個数: 32

約数和(自身を含む): 138854880

約数和(自身を除く): 74233064

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 421, 842, 1684, 2741, 2947, 3368, 5482, 5894, 10964, 11788, 19187, 21928, 23576, 38374, 76748, 153496, 1153961, 2307922, 4615844, 8077727, 9231688, 16155454, 32310908, 64621816]

約数ペア:

[(1, 64621816), (2, 32310908), (4, 16155454), (7, 9231688), (8, 8077727), (14, 4615844), (28, 2307922), (56, 1153961), (421, 153496), (842, 76748), (1684, 38374), (2741, 23576), (2947, 21928), (3368, 19187), (5482, 11788), (5894, 10964)]