81232980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71257}}^1$

素因数の和:71288

約数の個数: 48

約数和(自身を含む): 239426880

約数和(自身を除く): 158193900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 71257, 142514, 213771, 285028, 356285, 427542, 712570, 855084, 1068855, 1353883, 1425140, 2137710, 2707766, 4061649, 4275420, 5415532, 6769415, 8123298, 13538830, 16246596, 20308245, 27077660, 40616490, 81232980]

約数ペア:

[(1, 81232980), (2, 40616490), (3, 27077660), (4, 20308245), (5, 16246596), (6, 13538830), (10, 8123298), (12, 6769415), (15, 5415532), (19, 4275420), (20, 4061649), (30, 2707766), (38, 2137710), (57, 1425140), (60, 1353883), (76, 1068855), (95, 855084), (114, 712570), (190, 427542), (228, 356285), (285, 285028), (380, 213771), (570, 142514), (1140, 71257)]