81744728

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{1867}}^1$

素因数の和:2307

約数の個数: 32

約数和(自身を含む): 165542160

約数和(自身を除く): 83797432

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 421, 842, 1684, 1867, 3368, 3734, 5473, 7468, 10946, 14936, 21892, 24271, 43784, 48542, 97084, 194168, 786007, 1572014, 3144028, 6288056, 10218091, 20436182, 40872364, 81744728]

約数ペア:

[(1, 81744728), (2, 40872364), (4, 20436182), (8, 10218091), (13, 6288056), (26, 3144028), (52, 1572014), (104, 786007), (421, 194168), (842, 97084), (1684, 48542), (1867, 43784), (3368, 24271), (3734, 21892), (5473, 14936), (7468, 10946)]