81017500

素因数分解:

$2^2\times 5^4\times {\mathrm{23}}^1\times {\mathrm{1409}}^1$

素因数の和:1456

約数の個数: 60

約数和(自身を含む): 185003280

約数和(自身を除く): 103985780

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 92, 100, 115, 125, 230, 250, 460, 500, 575, 625, 1150, 1250, 1409, 2300, 2500, 2818, 2875, 5636, 5750, 7045, 11500, 14090, 14375, 28180, 28750, 32407, 35225, 57500, 64814, 70450, 129628, 140900, 162035, 176125, 324070, 352250, 648140, 704500, 810175, 880625, 1620350, 1761250, 3240700, 3522500, 4050875, 8101750, 16203500, 20254375, 40508750, 81017500]

約数ペア:

[(1, 81017500), (2, 40508750), (4, 20254375), (5, 16203500), (10, 8101750), (20, 4050875), (23, 3522500), (25, 3240700), (46, 1761250), (50, 1620350), (92, 880625), (100, 810175), (115, 704500), (125, 648140), (230, 352250), (250, 324070), (460, 176125), (500, 162035), (575, 140900), (625, 129628), (1150, 70450), (1250, 64814), (1409, 57500), (2300, 35225), (2500, 32407), (2818, 28750), (2875, 28180), (5636, 14375), (5750, 14090), (7045, 11500)]